Home / 131,612.56-181,625.32-71,183.21

Finding the Fourth Proportional to 131,612.56, 181,625.32 and 71,183.21

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Solution

The fourth proportional to 131,612.56, 181,625.32 and 71,183.21 is: 98,232.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,612.56 : 181,625.32 = 71,183.21 : x
  2. Step 2: Convert to fraction form
    131,612.56/181,625.32 = 71,183.21/x
  3. Step 3: Cross multiply
    131,612.56x = 181,625.32 × 71,183.21
  4. Step 4: Simplify right side
    131,612.56x = 12,928,672,386.75
  5. Step 5: Solve for x
    x = 12,928,672,386.75/131,612.56
  6. Step 6: Final answer
    x = 98,232.82

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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.