Home / 136,221.92-187,987.18-75,795.11

Finding the Fourth Proportional to 136,221.92, 187,987.18 and 75,795.11

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Solution

The fourth proportional to 136,221.92, 187,987.18 and 75,795.11 is: 104,597.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,221.92 : 187,987.18 = 75,795.11 : x
  2. Step 2: Convert to fraction form
    136,221.92/187,987.18 = 75,795.11/x
  3. Step 3: Cross multiply
    136,221.92x = 187,987.18 × 75,795.11
  4. Step 4: Simplify right side
    136,221.92x = 14,248,508,986.69
  5. Step 5: Solve for x
    x = 14,248,508,986.69/136,221.92
  6. Step 6: Final answer
    x = 104,597.77

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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.