Home / 112,140.32-154,753.61-61,839.32

Finding the Fourth Proportional to 112,140.32, 154,753.61 and 61,839.32

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Solution

The fourth proportional to 112,140.32, 154,753.61 and 61,839.32 is: 85,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,140.32 : 154,753.61 = 61,839.32 : x
  2. Step 2: Convert to fraction form
    112,140.32/154,753.61 = 61,839.32/x
  3. Step 3: Cross multiply
    112,140.32x = 154,753.61 × 61,839.32
  4. Step 4: Simplify right side
    112,140.32x = 9,569,856,926.98
  5. Step 5: Solve for x
    x = 9,569,856,926.98/112,140.32
  6. Step 6: Final answer
    x = 85,338.24

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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.