Home / 154,421.20-231,631.80-147,204.10

Finding the Fourth Proportional to 154,421.20, 231,631.80 and 147,204.10

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Solution

The fourth proportional to 154,421.20, 231,631.80 and 147,204.10 is: 220,806.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,421.20 : 231,631.80 = 147,204.10 : x
  2. Step 2: Convert to fraction form
    154,421.20/231,631.80 = 147,204.10/x
  3. Step 3: Cross multiply
    154,421.20x = 231,631.80 × 147,204.10
  4. Step 4: Simplify right side
    154,421.20x = 34,097,150,650.38
  5. Step 5: Solve for x
    x = 34,097,150,650.38/154,421.20
  6. Step 6: Final answer
    x = 220,806.15

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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.