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Finding the Fourth Proportional to 106,328.20, 159,729.90 and 88,832.20

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Solution

The fourth proportional to 106,328.20, 159,729.90 and 88,832.20 is: 133,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,328.20 : 159,729.90 = 88,832.20 : x
  2. Step 2: Convert to fraction form
    106,328.20/159,729.90 = 88,832.20/x
  3. Step 3: Cross multiply
    106,328.20x = 159,729.90 × 88,832.20
  4. Step 4: Simplify right side
    106,328.20x = 14,189,158,422.78
  5. Step 5: Solve for x
    x = 14,189,158,422.78/106,328.20
  6. Step 6: Final answer
    x = 133,446.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.