Home / 84,808.28-126,949.98-72,211.16

Finding the Fourth Proportional to 84,808.28, 126,949.98 and 72,211.16

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Solution

The fourth proportional to 84,808.28, 126,949.98 and 72,211.16 is: 108,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,808.28 : 126,949.98 = 72,211.16 : x
  2. Step 2: Convert to fraction form
    84,808.28/126,949.98 = 72,211.16/x
  3. Step 3: Cross multiply
    84,808.28x = 126,949.98 × 72,211.16
  4. Step 4: Simplify right side
    84,808.28x = 9,167,205,317.78
  5. Step 5: Solve for x
    x = 9,167,205,317.78/84,808.28
  6. Step 6: Final answer
    x = 108,093.28

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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.