Home / 131,016.87-180,747.23-85,616.04

Finding the Fourth Proportional to 131,016.87, 180,747.23 and 85,616.04

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Solution

The fourth proportional to 131,016.87, 180,747.23 and 85,616.04 is: 118,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,016.87 : 180,747.23 = 85,616.04 : x
  2. Step 2: Convert to fraction form
    131,016.87/180,747.23 = 85,616.04/x
  3. Step 3: Cross multiply
    131,016.87x = 180,747.23 × 85,616.04
  4. Step 4: Simplify right side
    131,016.87x = 15,474,862,073.57
  5. Step 5: Solve for x
    x = 15,474,862,073.57/131,016.87
  6. Step 6: Final answer
    x = 118,113.51

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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.