Home / 230,539.52-318,143.92-128,565.10

Finding the Fourth Proportional to 230,539.52, 318,143.92 and 128,565.10

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Solution

The fourth proportional to 230,539.52, 318,143.92 and 128,565.10 is: 177,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,539.52 : 318,143.92 = 128,565.10 : x
  2. Step 2: Convert to fraction form
    230,539.52/318,143.92 = 128,565.10/x
  3. Step 3: Cross multiply
    230,539.52x = 318,143.92 × 128,565.10
  4. Step 4: Simplify right side
    230,539.52x = 40,902,204,492.53
  5. Step 5: Solve for x
    x = 40,902,204,492.53/230,539.52
  6. Step 6: Final answer
    x = 177,419.49

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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.