Home / 113,521.20-169,990.20-89,998.80

Finding the Fourth Proportional to 113,521.20, 169,990.20 and 89,998.80

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Solution

The fourth proportional to 113,521.20, 169,990.20 and 89,998.80 is: 134,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,521.20 : 169,990.20 = 89,998.80 : x
  2. Step 2: Convert to fraction form
    113,521.20/169,990.20 = 89,998.80/x
  3. Step 3: Cross multiply
    113,521.20x = 169,990.20 × 89,998.80
  4. Step 4: Simplify right side
    113,521.20x = 15,298,914,011.76
  5. Step 5: Solve for x
    x = 15,298,914,011.76/113,521.20
  6. Step 6: Final answer
    x = 134,767.02

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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.