Home / 99,406.20-149,012.10-88,908.60

Finding the Fourth Proportional to 99,406.20, 149,012.10 and 88,908.60

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Solution

The fourth proportional to 99,406.20, 149,012.10 and 88,908.60 is: 133,275.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,406.20 : 149,012.10 = 88,908.60 : x
  2. Step 2: Convert to fraction form
    99,406.20/149,012.10 = 88,908.60/x
  3. Step 3: Cross multiply
    99,406.20x = 149,012.10 × 88,908.60
  4. Step 4: Simplify right side
    99,406.20x = 13,248,457,194.06
  5. Step 5: Solve for x
    x = 13,248,457,194.06/99,406.20
  6. Step 6: Final answer
    x = 133,275.96

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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.