Home / 118,486.76-163,511.74-64,772.16

Finding the Fourth Proportional to 118,486.76, 163,511.74 and 64,772.16

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Solution

The fourth proportional to 118,486.76, 163,511.74 and 64,772.16 is: 89,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,486.76 : 163,511.74 = 64,772.16 : x
  2. Step 2: Convert to fraction form
    118,486.76/163,511.74 = 64,772.16/x
  3. Step 3: Cross multiply
    118,486.76x = 163,511.74 × 64,772.16
  4. Step 4: Simplify right side
    118,486.76x = 10,591,009,250.41
  5. Step 5: Solve for x
    x = 10,591,009,250.41/118,486.76
  6. Step 6: Final answer
    x = 89,385.59

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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.