Home / 127,279.12-175,634.90-73,567.61

Finding the Fourth Proportional to 127,279.12, 175,634.90 and 73,567.61

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Solution

The fourth proportional to 127,279.12, 175,634.90 and 73,567.61 is: 101,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,279.12 : 175,634.90 = 73,567.61 : x
  2. Step 2: Convert to fraction form
    127,279.12/175,634.90 = 73,567.61/x
  3. Step 3: Cross multiply
    127,279.12x = 175,634.90 × 73,567.61
  4. Step 4: Simplify right side
    127,279.12x = 12,921,039,457.75
  5. Step 5: Solve for x
    x = 12,921,039,457.75/127,279.12
  6. Step 6: Final answer
    x = 101,517.36

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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.