Home / 124,705.35-187,131.78-45,874.89

Finding the Fourth Proportional to 124,705.35, 187,131.78 and 45,874.89

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Solution

The fourth proportional to 124,705.35, 187,131.78 and 45,874.89 is: 68,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,705.35 : 187,131.78 = 45,874.89 : x
  2. Step 2: Convert to fraction form
    124,705.35/187,131.78 = 45,874.89/x
  3. Step 3: Cross multiply
    124,705.35x = 187,131.78 × 45,874.89
  4. Step 4: Simplify right side
    124,705.35x = 8,584,649,823.00
  5. Step 5: Solve for x
    x = 8,584,649,823.00/124,705.35
  6. Step 6: Final answer
    x = 68,839.47

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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.