Home / 125,143.62-187,716.06-31,649.46

Finding the Fourth Proportional to 125,143.62, 187,716.06 and 31,649.46

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Solution

The fourth proportional to 125,143.62, 187,716.06 and 31,649.46 is: 47,474.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,143.62 : 187,716.06 = 31,649.46 : x
  2. Step 2: Convert to fraction form
    125,143.62/187,716.06 = 31,649.46/x
  3. Step 3: Cross multiply
    125,143.62x = 187,716.06 × 31,649.46
  4. Step 4: Simplify right side
    125,143.62x = 5,941,111,932.33
  5. Step 5: Solve for x
    x = 5,941,111,932.33/125,143.62
  6. Step 6: Final answer
    x = 47,474.35

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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.