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Finding the Fourth Proportional to 125,310.40, 187,921.88 and 50,411.12

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Solution

The fourth proportional to 125,310.40, 187,921.88 and 50,411.12 is: 75,599.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,310.40 : 187,921.88 = 50,411.12 : x
  2. Step 2: Convert to fraction form
    125,310.40/187,921.88 = 50,411.12/x
  3. Step 3: Cross multiply
    125,310.40x = 187,921.88 × 50,411.12
  4. Step 4: Simplify right side
    125,310.40x = 9,473,352,443.31
  5. Step 5: Solve for x
    x = 9,473,352,443.31/125,310.40
  6. Step 6: Final answer
    x = 75,599.09

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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.