Home / 131,380.57-181,305.16-70,951.21

Finding the Fourth Proportional to 131,380.57, 181,305.16 and 70,951.21

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Solution

The fourth proportional to 131,380.57, 181,305.16 and 70,951.21 is: 97,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,380.57 : 181,305.16 = 70,951.21 : x
  2. Step 2: Convert to fraction form
    131,380.57/181,305.16 = 70,951.21/x
  3. Step 3: Cross multiply
    131,380.57x = 181,305.16 × 70,951.21
  4. Step 4: Simplify right side
    131,380.57x = 12,863,820,481.24
  5. Step 5: Solve for x
    x = 12,863,820,481.24/131,380.57
  6. Step 6: Final answer
    x = 97,912.66

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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.