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Finding the Fourth Proportional to 125,423.82, 188,153.37 and 36,684

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Solution

The fourth proportional to 125,423.82, 188,153.37 and 36,684 is: 55,031.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,423.82 : 188,153.37 = 36,684 : x
  2. Step 2: Convert to fraction form
    125,423.82/188,153.37 = 36,684/x
  3. Step 3: Cross multiply
    125,423.82x = 188,153.37 × 36,684
  4. Step 4: Simplify right side
    125,423.82x = 6,902,218,225.08
  5. Step 5: Solve for x
    x = 6,902,218,225.08/125,423.82
  6. Step 6: Final answer
    x = 55,031.16

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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.