Home / 107,242.15-147,949.80-61,887.95

Finding the Fourth Proportional to 107,242.15, 147,949.80 and 61,887.95

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Solution

The fourth proportional to 107,242.15, 147,949.80 and 61,887.95 is: 85,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,242.15 : 147,949.80 = 61,887.95 : x
  2. Step 2: Convert to fraction form
    107,242.15/147,949.80 = 61,887.95/x
  3. Step 3: Cross multiply
    107,242.15x = 147,949.80 × 61,887.95
  4. Step 4: Simplify right side
    107,242.15x = 9,156,309,824.91
  5. Step 5: Solve for x
    x = 9,156,309,824.91/107,242.15
  6. Step 6: Final answer
    x = 85,379.77

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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.