Home / 104,981.11-144,876.19-57,234.78

Finding the Fourth Proportional to 104,981.11, 144,876.19 and 57,234.78

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Solution

The fourth proportional to 104,981.11, 144,876.19 and 57,234.78 is: 78,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,981.11 : 144,876.19 = 57,234.78 : x
  2. Step 2: Convert to fraction form
    104,981.11/144,876.19 = 57,234.78/x
  3. Step 3: Cross multiply
    104,981.11x = 144,876.19 × 57,234.78
  4. Step 4: Simplify right side
    104,981.11x = 8,291,956,718.80
  5. Step 5: Solve for x
    x = 8,291,956,718.80/104,981.11
  6. Step 6: Final answer
    x = 78,985.23

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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.