Home / 131,624.70-181,641.38-71,195.28

Finding the Fourth Proportional to 131,624.70, 181,641.38 and 71,195.28

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Solution

The fourth proportional to 131,624.70, 181,641.38 and 71,195.28 is: 98,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,624.70 : 181,641.38 = 71,195.28 : x
  2. Step 2: Convert to fraction form
    131,624.70/181,641.38 = 71,195.28/x
  3. Step 3: Cross multiply
    131,624.70x = 181,641.38 × 71,195.28
  4. Step 4: Simplify right side
    131,624.70x = 12,932,008,908.69
  5. Step 5: Solve for x
    x = 12,932,008,908.69/131,624.70
  6. Step 6: Final answer
    x = 98,249.10

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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.