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Finding the Fourth Proportional to 125,320.80, 188,024.40 and 55,250.40

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Solution

The fourth proportional to 125,320.80, 188,024.40 and 55,250.40 is: 82,894.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,320.80 : 188,024.40 = 55,250.40 : x
  2. Step 2: Convert to fraction form
    125,320.80/188,024.40 = 55,250.40/x
  3. Step 3: Cross multiply
    125,320.80x = 188,024.40 × 55,250.40
  4. Step 4: Simplify right side
    125,320.80x = 10,388,423,309.76
  5. Step 5: Solve for x
    x = 10,388,423,309.76/125,320.80
  6. Step 6: Final answer
    x = 82,894.65

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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.