Home / 102,360.40-141,267.76-57,045.76

Finding the Fourth Proportional to 102,360.40, 141,267.76 and 57,045.76

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Solution

The fourth proportional to 102,360.40, 141,267.76 and 57,045.76 is: 78,728.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,360.40 : 141,267.76 = 57,045.76 : x
  2. Step 2: Convert to fraction form
    102,360.40/141,267.76 = 57,045.76/x
  3. Step 3: Cross multiply
    102,360.40x = 141,267.76 × 57,045.76
  4. Step 4: Simplify right side
    102,360.40x = 8,058,726,732.70
  5. Step 5: Solve for x
    x = 8,058,726,732.70/102,360.40
  6. Step 6: Final answer
    x = 78,728.95

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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.