Home / 126,065.20-173,967.96-72,348.97

Finding the Fourth Proportional to 126,065.20, 173,967.96 and 72,348.97

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Solution

The fourth proportional to 126,065.20, 173,967.96 and 72,348.97 is: 99,840.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,065.20 : 173,967.96 = 72,348.97 : x
  2. Step 2: Convert to fraction form
    126,065.20/173,967.96 = 72,348.97/x
  3. Step 3: Cross multiply
    126,065.20x = 173,967.96 × 72,348.97
  4. Step 4: Simplify right side
    126,065.20x = 12,586,402,719.00
  5. Step 5: Solve for x
    x = 12,586,402,719.00/126,065.20
  6. Step 6: Final answer
    x = 99,840.42

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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.