Home / 243,565.17-336,121.18-136,132.90

Finding the Fourth Proportional to 243,565.17, 336,121.18 and 136,132.90

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Solution

The fourth proportional to 243,565.17, 336,121.18 and 136,132.90 is: 187,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,565.17 : 336,121.18 = 136,132.90 : x
  2. Step 2: Convert to fraction form
    243,565.17/336,121.18 = 136,132.90/x
  3. Step 3: Cross multiply
    243,565.17x = 336,121.18 × 136,132.90
  4. Step 4: Simplify right side
    243,565.17x = 45,757,148,623.55
  5. Step 5: Solve for x
    x = 45,757,148,623.55/243,565.17
  6. Step 6: Final answer
    x = 187,864.09

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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.