Home / 126,886.28-175,023.84-81,623.24

Finding the Fourth Proportional to 126,886.28, 175,023.84 and 81,623.24

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Solution

The fourth proportional to 126,886.28, 175,023.84 and 81,623.24 is: 112,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,886.28 : 175,023.84 = 81,623.24 : x
  2. Step 2: Convert to fraction form
    126,886.28/175,023.84 = 81,623.24/x
  3. Step 3: Cross multiply
    126,886.28x = 175,023.84 × 81,623.24
  4. Step 4: Simplify right side
    126,886.28x = 14,286,012,898.04
  5. Step 5: Solve for x
    x = 14,286,012,898.04/126,886.28
  6. Step 6: Final answer
    x = 112,589.11

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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.