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Finding the Fourth Proportional to 154,060.20, 231,479.10 and 97,927.20

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Solution

The fourth proportional to 154,060.20, 231,479.10 and 97,927.20 is: 147,137.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,060.20 : 231,479.10 = 97,927.20 : x
  2. Step 2: Convert to fraction form
    154,060.20/231,479.10 = 97,927.20/x
  3. Step 3: Cross multiply
    154,060.20x = 231,479.10 × 97,927.20
  4. Step 4: Simplify right side
    154,060.20x = 22,668,100,121.52
  5. Step 5: Solve for x
    x = 22,668,100,121.52/154,060.20
  6. Step 6: Final answer
    x = 147,137.94

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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.