Home / 83,517.16-115,186.72-73,424.20

Finding the Fourth Proportional to 83,517.16, 115,186.72 and 73,424.20

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Solution

The fourth proportional to 83,517.16, 115,186.72 and 73,424.20 is: 101,266.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,517.16 : 115,186.72 = 73,424.20 : x
  2. Step 2: Convert to fraction form
    83,517.16/115,186.72 = 73,424.20/x
  3. Step 3: Cross multiply
    83,517.16x = 115,186.72 × 73,424.20
  4. Step 4: Simplify right side
    83,517.16x = 8,457,492,766.62
  5. Step 5: Solve for x
    x = 8,457,492,766.62/83,517.16
  6. Step 6: Final answer
    x = 101,266.53

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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.