Home / 126,842.47-175,043.90-76,531.75

Finding the Fourth Proportional to 126,842.47, 175,043.90 and 76,531.75

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Solution

The fourth proportional to 126,842.47, 175,043.90 and 76,531.75 is: 105,614.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,842.47 : 175,043.90 = 76,531.75 : x
  2. Step 2: Convert to fraction form
    126,842.47/175,043.90 = 76,531.75/x
  3. Step 3: Cross multiply
    126,842.47x = 175,043.90 × 76,531.75
  4. Step 4: Simplify right side
    126,842.47x = 13,396,415,611.17
  5. Step 5: Solve for x
    x = 13,396,415,611.17/126,842.47
  6. Step 6: Final answer
    x = 105,614.59

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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.