Home / 125,147.12-187,721.32-31,652.96

Finding the Fourth Proportional to 125,147.12, 187,721.32 and 31,652.96

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Solution

The fourth proportional to 125,147.12, 187,721.32 and 31,652.96 is: 47,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,147.12 : 187,721.32 = 31,652.96 : x
  2. Step 2: Convert to fraction form
    125,147.12/187,721.32 = 31,652.96/x
  3. Step 3: Cross multiply
    125,147.12x = 187,721.32 × 31,652.96
  4. Step 4: Simplify right side
    125,147.12x = 5,941,935,433.11
  5. Step 5: Solve for x
    x = 5,941,935,433.11/125,147.12
  6. Step 6: Final answer
    x = 47,479.60

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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.