Home / 118,407.27-163,400.12-64,691.13

Finding the Fourth Proportional to 118,407.27, 163,400.12 and 64,691.13

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Solution

The fourth proportional to 118,407.27, 163,400.12 and 64,691.13 is: 89,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,407.27 : 163,400.12 = 64,691.13 : x
  2. Step 2: Convert to fraction form
    118,407.27/163,400.12 = 64,691.13/x
  3. Step 3: Cross multiply
    118,407.27x = 163,400.12 × 64,691.13
  4. Step 4: Simplify right side
    118,407.27x = 10,570,538,404.94
  5. Step 5: Solve for x
    x = 10,570,538,404.94/118,407.27
  6. Step 6: Final answer
    x = 89,272.71

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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.