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Finding the Fourth Proportional to 125,901.80, 188,809.18 and 55,830.12

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Solution

The fourth proportional to 125,901.80, 188,809.18 and 55,830.12 is: 83,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,901.80 : 188,809.18 = 55,830.12 : x
  2. Step 2: Convert to fraction form
    125,901.80/188,809.18 = 55,830.12/x
  3. Step 3: Cross multiply
    125,901.80x = 188,809.18 × 55,830.12
  4. Step 4: Simplify right side
    125,901.80x = 10,541,239,176.50
  5. Step 5: Solve for x
    x = 10,541,239,176.50/125,901.80
  6. Step 6: Final answer
    x = 83,725.88

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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.