Home / 125,288.64-187,930.08-30,519.18

Finding the Fourth Proportional to 125,288.64, 187,930.08 and 30,519.18

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Solution

The fourth proportional to 125,288.64, 187,930.08 and 30,519.18 is: 45,778.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,288.64 : 187,930.08 = 30,519.18 : x
  2. Step 2: Convert to fraction form
    125,288.64/187,930.08 = 30,519.18/x
  3. Step 3: Cross multiply
    125,288.64x = 187,930.08 × 30,519.18
  4. Step 4: Simplify right side
    125,288.64x = 5,735,471,938.93
  5. Step 5: Solve for x
    x = 5,735,471,938.93/125,288.64
  6. Step 6: Final answer
    x = 45,778.07

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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.