Home / 161,402.13-222,747.30-89,787.47

Finding the Fourth Proportional to 161,402.13, 222,747.30 and 89,787.47

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Solution

The fourth proportional to 161,402.13, 222,747.30 and 89,787.47 is: 123,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,402.13 : 222,747.30 = 89,787.47 : x
  2. Step 2: Convert to fraction form
    161,402.13/222,747.30 = 89,787.47/x
  3. Step 3: Cross multiply
    161,402.13x = 222,747.30 × 89,787.47
  4. Step 4: Simplify right side
    161,402.13x = 19,999,915,402.59
  5. Step 5: Solve for x
    x = 19,999,915,402.59/161,402.13
  6. Step 6: Final answer
    x = 123,913.58

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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.