Home / 113,351.20-169,623.60-98,720.80

Finding the Fourth Proportional to 113,351.20, 169,623.60 and 98,720.80

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Solution

The fourth proportional to 113,351.20, 169,623.60 and 98,720.80 is: 147,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,351.20 : 169,623.60 = 98,720.80 : x
  2. Step 2: Convert to fraction form
    113,351.20/169,623.60 = 98,720.80/x
  3. Step 3: Cross multiply
    113,351.20x = 169,623.60 × 98,720.80
  4. Step 4: Simplify right side
    113,351.20x = 16,745,377,490.88
  5. Step 5: Solve for x
    x = 16,745,377,490.88/113,351.20
  6. Step 6: Final answer
    x = 147,730.04

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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.