Home / 113,122.50-156,122.82-65,376.24

Finding the Fourth Proportional to 113,122.50, 156,122.82 and 65,376.24

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Solution

The fourth proportional to 113,122.50, 156,122.82 and 65,376.24 is: 90,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,122.50 : 156,122.82 = 65,376.24 : x
  2. Step 2: Convert to fraction form
    113,122.50/156,122.82 = 65,376.24/x
  3. Step 3: Cross multiply
    113,122.50x = 156,122.82 × 65,376.24
  4. Step 4: Simplify right side
    113,122.50x = 10,206,722,949.80
  5. Step 5: Solve for x
    x = 10,206,722,949.80/113,122.50
  6. Step 6: Final answer
    x = 90,227.17

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1.5x scale

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.