Home / 154,460.30-231,690.45-54,619.70

Finding the Fourth Proportional to 154,460.30, 231,690.45 and 54,619.70

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Solution

The fourth proportional to 154,460.30, 231,690.45 and 54,619.70 is: 81,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,460.30 : 231,690.45 = 54,619.70 : x
  2. Step 2: Convert to fraction form
    154,460.30/231,690.45 = 54,619.70/x
  3. Step 3: Cross multiply
    154,460.30x = 231,690.45 × 54,619.70
  4. Step 4: Simplify right side
    154,460.30x = 12,654,862,871.87
  5. Step 5: Solve for x
    x = 12,654,862,871.87/154,460.30
  6. Step 6: Final answer
    x = 81,929.55

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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.