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Finding the Fourth Proportional to 125,388.96, 188,095.56 and 36,640.44

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Solution

The fourth proportional to 125,388.96, 188,095.56 and 36,640.44 is: 54,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,388.96 : 188,095.56 = 36,640.44 : x
  2. Step 2: Convert to fraction form
    125,388.96/188,095.56 = 36,640.44/x
  3. Step 3: Cross multiply
    125,388.96x = 188,095.56 × 36,640.44
  4. Step 4: Simplify right side
    125,388.96x = 6,891,904,080.45
  5. Step 5: Solve for x
    x = 6,891,904,080.45/125,388.96
  6. Step 6: Final answer
    x = 54,964.20

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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.