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Finding the Fourth Proportional to 123,552.78, 185,329.17 and 30,057.72

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Solution

The fourth proportional to 123,552.78, 185,329.17 and 30,057.72 is: 45,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,552.78 : 185,329.17 = 30,057.72 : x
  2. Step 2: Convert to fraction form
    123,552.78/185,329.17 = 30,057.72/x
  3. Step 3: Cross multiply
    123,552.78x = 185,329.17 × 30,057.72
  4. Step 4: Simplify right side
    123,552.78x = 5,570,572,299.69
  5. Step 5: Solve for x
    x = 5,570,572,299.69/123,552.78
  6. Step 6: Final answer
    x = 45,086.58

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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.