Home / 136,037.76-187,729.68-75,607.44

Finding the Fourth Proportional to 136,037.76, 187,729.68 and 75,607.44

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Solution

The fourth proportional to 136,037.76, 187,729.68 and 75,607.44 is: 104,336.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,037.76 : 187,729.68 = 75,607.44 : x
  2. Step 2: Convert to fraction form
    136,037.76/187,729.68 = 75,607.44/x
  3. Step 3: Cross multiply
    136,037.76x = 187,729.68 × 75,607.44
  4. Step 4: Simplify right side
    136,037.76x = 14,193,760,516.82
  5. Step 5: Solve for x
    x = 14,193,760,516.82/136,037.76
  6. Step 6: Final answer
    x = 104,336.92

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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.