Home / 125,180.64-187,771.10-31,686.39

Finding the Fourth Proportional to 125,180.64, 187,771.10 and 31,686.39

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Solution

The fourth proportional to 125,180.64, 187,771.10 and 31,686.39 is: 47,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,180.64 : 187,771.10 = 31,686.39 : x
  2. Step 2: Convert to fraction form
    125,180.64/187,771.10 = 31,686.39/x
  3. Step 3: Cross multiply
    125,180.64x = 187,771.10 × 31,686.39
  4. Step 4: Simplify right side
    125,180.64x = 5,949,788,146.90
  5. Step 5: Solve for x
    x = 5,949,788,146.90/125,180.64
  6. Step 6: Final answer
    x = 47,529.62

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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.