Home / 118,487.73-163,513.11-64,772.73

Finding the Fourth Proportional to 118,487.73, 163,513.11 and 64,772.73

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Solution

The fourth proportional to 118,487.73, 163,513.11 and 64,772.73 is: 89,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,487.73 : 163,513.11 = 64,772.73 : x
  2. Step 2: Convert to fraction form
    118,487.73/163,513.11 = 64,772.73/x
  3. Step 3: Cross multiply
    118,487.73x = 163,513.11 × 64,772.73
  4. Step 4: Simplify right side
    118,487.73x = 10,591,190,525.49
  5. Step 5: Solve for x
    x = 10,591,190,525.49/118,487.73
  6. Step 6: Final answer
    x = 89,386.39

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.