Home / 112,340.52-154,961.10-76,546.62

Finding the Fourth Proportional to 112,340.52, 154,961.10 and 76,546.62

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Solution

The fourth proportional to 112,340.52, 154,961.10 and 76,546.62 is: 105,587.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,340.52 : 154,961.10 = 76,546.62 : x
  2. Step 2: Convert to fraction form
    112,340.52/154,961.10 = 76,546.62/x
  3. Step 3: Cross multiply
    112,340.52x = 154,961.10 × 76,546.62
  4. Step 4: Simplify right side
    112,340.52x = 11,861,748,436.48
  5. Step 5: Solve for x
    x = 11,861,748,436.48/112,340.52
  6. Step 6: Final answer
    x = 105,587.44

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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.