Home / 159,945.21-220,724.46-88,330.10

Finding the Fourth Proportional to 159,945.21, 220,724.46 and 88,330.10

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Solution

The fourth proportional to 159,945.21, 220,724.46 and 88,330.10 is: 121,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,945.21 : 220,724.46 = 88,330.10 : x
  2. Step 2: Convert to fraction form
    159,945.21/220,724.46 = 88,330.10/x
  3. Step 3: Cross multiply
    159,945.21x = 220,724.46 × 88,330.10
  4. Step 4: Simplify right side
    159,945.21x = 19,496,612,520.62
  5. Step 5: Solve for x
    x = 19,496,612,520.62/159,945.21
  6. Step 6: Final answer
    x = 121,895.57

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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.