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Finding the Fourth Proportional to 125,369.56, 188,127.78 and 46,538.20

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Solution

The fourth proportional to 125,369.56, 188,127.78 and 46,538.20 is: 69,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,369.56 : 188,127.78 = 46,538.20 : x
  2. Step 2: Convert to fraction form
    125,369.56/188,127.78 = 46,538.20/x
  3. Step 3: Cross multiply
    125,369.56x = 188,127.78 × 46,538.20
  4. Step 4: Simplify right side
    125,369.56x = 8,755,128,251.20
  5. Step 5: Solve for x
    x = 8,755,128,251.20/125,369.56
  6. Step 6: Final answer
    x = 69,834.56

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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.