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Finding the Fourth Proportional to 181,602.89, 272,404.33 and 81,744.47

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Solution

The fourth proportional to 181,602.89, 272,404.33 and 81,744.47 is: 122,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,602.89 : 272,404.33 = 81,744.47 : x
  2. Step 2: Convert to fraction form
    181,602.89/272,404.33 = 81,744.47/x
  3. Step 3: Cross multiply
    181,602.89x = 272,404.33 × 81,744.47
  4. Step 4: Simplify right side
    181,602.89x = 22,267,547,581.56
  5. Step 5: Solve for x
    x = 22,267,547,581.56/181,602.89
  6. Step 6: Final answer
    x = 122,616.70

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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.