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Finding the Fourth Proportional to 148,998.80, 223,206.60 and 89,658.20

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Solution

The fourth proportional to 148,998.80, 223,206.60 and 89,658.20 is: 134,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,998.80 : 223,206.60 = 89,658.20 : x
  2. Step 2: Convert to fraction form
    148,998.80/223,206.60 = 89,658.20/x
  3. Step 3: Cross multiply
    148,998.80x = 223,206.60 × 89,658.20
  4. Step 4: Simplify right side
    148,998.80x = 20,012,301,984.12
  5. Step 5: Solve for x
    x = 20,012,301,984.12/148,998.80
  6. Step 6: Final answer
    x = 134,311.83

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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.