Home / 131,020.85-180,807.67-73,660.42

Finding the Fourth Proportional to 131,020.85, 180,807.67 and 73,660.42

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Solution

The fourth proportional to 131,020.85, 180,807.67 and 73,660.42 is: 101,650.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,020.85 : 180,807.67 = 73,660.42 : x
  2. Step 2: Convert to fraction form
    131,020.85/180,807.67 = 73,660.42/x
  3. Step 3: Cross multiply
    131,020.85x = 180,807.67 × 73,660.42
  4. Step 4: Simplify right side
    131,020.85x = 13,318,368,275.25
  5. Step 5: Solve for x
    x = 13,318,368,275.25/131,020.85
  6. Step 6: Final answer
    x = 101,650.76

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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.