Home / 136,107.72-187,837.14-75,691.86

Finding the Fourth Proportional to 136,107.72, 187,837.14 and 75,691.86

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Solution

The fourth proportional to 136,107.72, 187,837.14 and 75,691.86 is: 104,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,107.72 : 187,837.14 = 75,691.86 : x
  2. Step 2: Convert to fraction form
    136,107.72/187,837.14 = 75,691.86/x
  3. Step 3: Cross multiply
    136,107.72x = 187,837.14 × 75,691.86
  4. Step 4: Simplify right side
    136,107.72x = 14,217,742,503.68
  5. Step 5: Solve for x
    x = 14,217,742,503.68/136,107.72
  6. Step 6: Final answer
    x = 104,459.49

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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.