Home / 126,554.40-174,679.20-72,856.80

Finding the Fourth Proportional to 126,554.40, 174,679.20 and 72,856.80

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Solution

The fourth proportional to 126,554.40, 174,679.20 and 72,856.80 is: 100,562.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,554.40 : 174,679.20 = 72,856.80 : x
  2. Step 2: Convert to fraction form
    126,554.40/174,679.20 = 72,856.80/x
  3. Step 3: Cross multiply
    126,554.40x = 174,679.20 × 72,856.80
  4. Step 4: Simplify right side
    126,554.40x = 12,726,567,538.56
  5. Step 5: Solve for x
    x = 12,726,567,538.56/126,554.40
  6. Step 6: Final answer
    x = 100,562.03

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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.