Home / 154,381.20-231,462.45-70,181.70

Finding the Fourth Proportional to 154,381.20, 231,462.45 and 70,181.70

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Solution

The fourth proportional to 154,381.20, 231,462.45 and 70,181.70 is: 105,222.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,381.20 : 231,462.45 = 70,181.70 : x
  2. Step 2: Convert to fraction form
    154,381.20/231,462.45 = 70,181.70/x
  3. Step 3: Cross multiply
    154,381.20x = 231,462.45 × 70,181.70
  4. Step 4: Simplify right side
    154,381.20x = 16,244,428,227.17
  5. Step 5: Solve for x
    x = 16,244,428,227.17/154,381.20
  6. Step 6: Final answer
    x = 105,222.84

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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.