Home / 118,684.08-163,778.76-64,970.16

Finding the Fourth Proportional to 118,684.08, 163,778.76 and 64,970.16

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Solution

The fourth proportional to 118,684.08, 163,778.76 and 64,970.16 is: 89,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,684.08 : 163,778.76 = 64,970.16 : x
  2. Step 2: Convert to fraction form
    118,684.08/163,778.76 = 64,970.16/x
  3. Step 3: Cross multiply
    118,684.08x = 163,778.76 × 64,970.16
  4. Step 4: Simplify right side
    118,684.08x = 10,640,732,241.80
  5. Step 5: Solve for x
    x = 10,640,732,241.80/118,684.08
  6. Step 6: Final answer
    x = 89,655.94

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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.