Home / 124,761.18-187,215.90-45,930.78

Finding the Fourth Proportional to 124,761.18, 187,215.90 and 45,930.78

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Solution

The fourth proportional to 124,761.18, 187,215.90 and 45,930.78 is: 68,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,761.18 : 187,215.90 = 45,930.78 : x
  2. Step 2: Convert to fraction form
    124,761.18/187,215.90 = 45,930.78/x
  3. Step 3: Cross multiply
    124,761.18x = 187,215.90 × 45,930.78
  4. Step 4: Simplify right side
    124,761.18x = 8,598,972,315.40
  5. Step 5: Solve for x
    x = 8,598,972,315.40/124,761.18
  6. Step 6: Final answer
    x = 68,923.46

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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.