Home / 102,132.74-140,943.17-57,420.74

Finding the Fourth Proportional to 102,132.74, 140,943.17 and 57,420.74

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Solution

The fourth proportional to 102,132.74, 140,943.17 and 57,420.74 is: 79,240.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,132.74 : 140,943.17 = 57,420.74 : x
  2. Step 2: Convert to fraction form
    102,132.74/140,943.17 = 57,420.74/x
  3. Step 3: Cross multiply
    102,132.74x = 140,943.17 × 57,420.74
  4. Step 4: Simplify right side
    102,132.74x = 8,093,061,119.35
  5. Step 5: Solve for x
    x = 8,093,061,119.35/102,132.74
  6. Step 6: Final answer
    x = 79,240.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.