Home / 131,320.32-181,221.12-71,704.32

Finding the Fourth Proportional to 131,320.32, 181,221.12 and 71,704.32

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Solution

The fourth proportional to 131,320.32, 181,221.12 and 71,704.32 is: 98,951.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,320.32 : 181,221.12 = 71,704.32 : x
  2. Step 2: Convert to fraction form
    131,320.32/181,221.12 = 71,704.32/x
  3. Step 3: Cross multiply
    131,320.32x = 181,221.12 × 71,704.32
  4. Step 4: Simplify right side
    131,320.32x = 12,994,337,179.24
  5. Step 5: Solve for x
    x = 12,994,337,179.24/131,320.32
  6. Step 6: Final answer
    x = 98,951.46

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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.