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Finding the Fourth Proportional to 125,424.55, 188,165.55 and 54,359.12

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Solution

The fourth proportional to 125,424.55, 188,165.55 and 54,359.12 is: 81,551.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,424.55 : 188,165.55 = 54,359.12 : x
  2. Step 2: Convert to fraction form
    125,424.55/188,165.55 = 54,359.12/x
  3. Step 3: Cross multiply
    125,424.55x = 188,165.55 × 54,359.12
  4. Step 4: Simplify right side
    125,424.55x = 10,228,513,712.32
  5. Step 5: Solve for x
    x = 10,228,513,712.32/125,424.55
  6. Step 6: Final answer
    x = 81,551.13

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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.