Home / 131,612.70-181,624.82-71,183.28

Finding the Fourth Proportional to 131,612.70, 181,624.82 and 71,183.28

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Solution

The fourth proportional to 131,612.70, 181,624.82 and 71,183.28 is: 98,232.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,612.70 : 181,624.82 = 71,183.28 : x
  2. Step 2: Convert to fraction form
    131,612.70/181,624.82 = 71,183.28/x
  3. Step 3: Cross multiply
    131,612.70x = 181,624.82 × 71,183.28
  4. Step 4: Simplify right side
    131,612.70x = 12,928,650,417.01
  5. Step 5: Solve for x
    x = 12,928,650,417.01/131,612.70
  6. Step 6: Final answer
    x = 98,232.54

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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.