Home / 112,257.76-154,915.92-61,956.72

Finding the Fourth Proportional to 112,257.76, 154,915.92 and 61,956.72

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Solution

The fourth proportional to 112,257.76, 154,915.92 and 61,956.72 is: 85,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,257.76 : 154,915.92 = 61,956.72 : x
  2. Step 2: Convert to fraction form
    112,257.76/154,915.92 = 61,956.72/x
  3. Step 3: Cross multiply
    112,257.76x = 154,915.92 × 61,956.72
  4. Step 4: Simplify right side
    112,257.76x = 9,598,082,278.98
  5. Step 5: Solve for x
    x = 9,598,082,278.98/112,257.76
  6. Step 6: Final answer
    x = 85,500.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.