Home / 99,680.10-149,301.45-88,599.30

Finding the Fourth Proportional to 99,680.10, 149,301.45 and 88,599.30

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Solution

The fourth proportional to 99,680.10, 149,301.45 and 88,599.30 is: 132,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680.10 : 149,301.45 = 88,599.30 : x
  2. Step 2: Convert to fraction form
    99,680.10/149,301.45 = 88,599.30/x
  3. Step 3: Cross multiply
    99,680.10x = 149,301.45 × 88,599.30
  4. Step 4: Simplify right side
    99,680.10x = 13,228,003,958.99
  5. Step 5: Solve for x
    x = 13,228,003,958.99/99,680.10
  6. Step 6: Final answer
    x = 132,704.56

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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.