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Finding the Fourth Proportional to 123,790.68, 185,775.12 and 95,780.88

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Solution

The fourth proportional to 123,790.68, 185,775.12 and 95,780.88 is: 143,740.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,790.68 : 185,775.12 = 95,780.88 : x
  2. Step 2: Convert to fraction form
    123,790.68/185,775.12 = 95,780.88/x
  3. Step 3: Cross multiply
    123,790.68x = 185,775.12 × 95,780.88
  4. Step 4: Simplify right side
    123,790.68x = 17,793,704,475.71
  5. Step 5: Solve for x
    x = 17,793,704,475.71/123,790.68
  6. Step 6: Final answer
    x = 143,740.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.