Home / 138,892.27-191,497.14-113,372.71

Finding the Fourth Proportional to 138,892.27, 191,497.14 and 113,372.71

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Solution

The fourth proportional to 138,892.27, 191,497.14 and 113,372.71 is: 156,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,892.27 : 191,497.14 = 113,372.71 : x
  2. Step 2: Convert to fraction form
    138,892.27/191,497.14 = 113,372.71/x
  3. Step 3: Cross multiply
    138,892.27x = 191,497.14 × 113,372.71
  4. Step 4: Simplify right side
    138,892.27x = 21,710,549,998.62
  5. Step 5: Solve for x
    x = 21,710,549,998.62/138,892.27
  6. Step 6: Final answer
    x = 156,312.16

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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.