Home / 172,581.68-238,107.12-97,115.60

Finding the Fourth Proportional to 172,581.68, 238,107.12 and 97,115.60

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Solution

The fourth proportional to 172,581.68, 238,107.12 and 97,115.60 is: 133,988.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,581.68 : 238,107.12 = 97,115.60 : x
  2. Step 2: Convert to fraction form
    172,581.68/238,107.12 = 97,115.60/x
  3. Step 3: Cross multiply
    172,581.68x = 238,107.12 × 97,115.60
  4. Step 4: Simplify right side
    172,581.68x = 23,123,915,823.07
  5. Step 5: Solve for x
    x = 23,123,915,823.07/172,581.68
  6. Step 6: Final answer
    x = 133,988.24

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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.