Home / 112,165.18-154,725.33-71,253.70

Finding the Fourth Proportional to 112,165.18, 154,725.33 and 71,253.70

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Solution

The fourth proportional to 112,165.18, 154,725.33 and 71,253.70 is: 98,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,165.18 : 154,725.33 = 71,253.70 : x
  2. Step 2: Convert to fraction form
    112,165.18/154,725.33 = 71,253.70/x
  3. Step 3: Cross multiply
    112,165.18x = 154,725.33 × 71,253.70
  4. Step 4: Simplify right side
    112,165.18x = 11,024,752,246.22
  5. Step 5: Solve for x
    x = 11,024,752,246.22/112,165.18
  6. Step 6: Final answer
    x = 98,290.33

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1.5x scale

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.