Home / 161,713.19-242,613.54-91,641.71

Finding the Fourth Proportional to 161,713.19, 242,613.54 and 91,641.71

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Solution

The fourth proportional to 161,713.19, 242,613.54 and 91,641.71 is: 137,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,713.19 : 242,613.54 = 91,641.71 : x
  2. Step 2: Convert to fraction form
    161,713.19/242,613.54 = 91,641.71/x
  3. Step 3: Cross multiply
    161,713.19x = 242,613.54 × 91,641.71
  4. Step 4: Simplify right side
    161,713.19x = 22,233,518,461.69
  5. Step 5: Solve for x
    x = 22,233,518,461.69/161,713.19
  6. Step 6: Final answer
    x = 137,487.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.