Home / 112,156.28-154,774.92-61,855.28

Finding the Fourth Proportional to 112,156.28, 154,774.92 and 61,855.28

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Solution

The fourth proportional to 112,156.28, 154,774.92 and 61,855.28 is: 85,359.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,156.28 : 154,774.92 = 61,855.28 : x
  2. Step 2: Convert to fraction form
    112,156.28/154,774.92 = 61,855.28/x
  3. Step 3: Cross multiply
    112,156.28x = 154,774.92 × 61,855.28
  4. Step 4: Simplify right side
    112,156.28x = 9,573,646,013.58
  5. Step 5: Solve for x
    x = 9,573,646,013.58/112,156.28
  6. Step 6: Final answer
    x = 85,359.87

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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.