Home / 77,456.20-116,184.30-68,999.80

Finding the Fourth Proportional to 77,456.20, 116,184.30 and 68,999.80

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Solution

The fourth proportional to 77,456.20, 116,184.30 and 68,999.80 is: 103,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,456.20 : 116,184.30 = 68,999.80 : x
  2. Step 2: Convert to fraction form
    77,456.20/116,184.30 = 68,999.80/x
  3. Step 3: Cross multiply
    77,456.20x = 116,184.30 × 68,999.80
  4. Step 4: Simplify right side
    77,456.20x = 8,016,693,463.14
  5. Step 5: Solve for x
    x = 8,016,693,463.14/77,456.20
  6. Step 6: Final answer
    x = 103,499.70

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1.5x scale

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.