Home / 112,891.46-169,005-75,358.44

Finding the Fourth Proportional to 112,891.46, 169,005 and 75,358.44

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Solution

The fourth proportional to 112,891.46, 169,005 and 75,358.44 is: 112,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,891.46 : 169,005 = 75,358.44 : x
  2. Step 2: Convert to fraction form
    112,891.46/169,005 = 75,358.44/x
  3. Step 3: Cross multiply
    112,891.46x = 169,005 × 75,358.44
  4. Step 4: Simplify right side
    112,891.46x = 12,735,953,152.20
  5. Step 5: Solve for x
    x = 12,735,953,152.20/112,891.46
  6. Step 6: Final answer
    x = 112,815.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.