Home / 125,261.48-187,911.66-42,149

Finding the Fourth Proportional to 125,261.48, 187,911.66 and 42,149

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Solution

The fourth proportional to 125,261.48, 187,911.66 and 42,149 is: 63,230.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,261.48 : 187,911.66 = 42,149 : x
  2. Step 2: Convert to fraction form
    125,261.48/187,911.66 = 42,149/x
  3. Step 3: Cross multiply
    125,261.48x = 187,911.66 × 42,149
  4. Step 4: Simplify right side
    125,261.48x = 7,920,288,557.34
  5. Step 5: Solve for x
    x = 7,920,288,557.34/125,261.48
  6. Step 6: Final answer
    x = 63,230.04

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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.