Home / 112,195.74-154,819.34-61,891.50

Finding the Fourth Proportional to 112,195.74, 154,819.34 and 61,891.50

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Solution

The fourth proportional to 112,195.74, 154,819.34 and 61,891.50 is: 85,404.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,195.74 : 154,819.34 = 61,891.50 : x
  2. Step 2: Convert to fraction form
    112,195.74/154,819.34 = 61,891.50/x
  3. Step 3: Cross multiply
    112,195.74x = 154,819.34 × 61,891.50
  4. Step 4: Simplify right side
    112,195.74x = 9,582,001,181.61
  5. Step 5: Solve for x
    x = 9,582,001,181.61/112,195.74
  6. Step 6: Final answer
    x = 85,404.32

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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.