Home / 139,269.12-192,215.04-82,711.04

Finding the Fourth Proportional to 139,269.12, 192,215.04 and 82,711.04

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Solution

The fourth proportional to 139,269.12, 192,215.04 and 82,711.04 is: 114,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,269.12 : 192,215.04 = 82,711.04 : x
  2. Step 2: Convert to fraction form
    139,269.12/192,215.04 = 82,711.04/x
  3. Step 3: Cross multiply
    139,269.12x = 192,215.04 × 82,711.04
  4. Step 4: Simplify right side
    139,269.12x = 15,898,305,862.04
  5. Step 5: Solve for x
    x = 15,898,305,862.04/139,269.12
  6. Step 6: Final answer
    x = 114,155.28

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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.