Home / 125,134.62-187,703.13-31,640.34

Finding the Fourth Proportional to 125,134.62, 187,703.13 and 31,640.34

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Solution

The fourth proportional to 125,134.62, 187,703.13 and 31,640.34 is: 47,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,134.62 : 187,703.13 = 31,640.34 : x
  2. Step 2: Convert to fraction form
    125,134.62/187,703.13 = 31,640.34/x
  3. Step 3: Cross multiply
    125,134.62x = 187,703.13 × 31,640.34
  4. Step 4: Simplify right side
    125,134.62x = 5,938,990,852.26
  5. Step 5: Solve for x
    x = 5,938,990,852.26/125,134.62
  6. Step 6: Final answer
    x = 47,460.81

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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.