Home / 172,787.22-238,429.17-127,489.86

Finding the Fourth Proportional to 172,787.22, 238,429.17 and 127,489.86

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Solution

The fourth proportional to 172,787.22, 238,429.17 and 127,489.86 is: 175,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,787.22 : 238,429.17 = 127,489.86 : x
  2. Step 2: Convert to fraction form
    172,787.22/238,429.17 = 127,489.86/x
  3. Step 3: Cross multiply
    172,787.22x = 238,429.17 × 127,489.86
  4. Step 4: Simplify right side
    172,787.22x = 30,397,301,503.22
  5. Step 5: Solve for x
    x = 30,397,301,503.22/172,787.22
  6. Step 6: Final answer
    x = 175,923.32

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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.