Home / 126,571.95-174,679.88-72,874.35

Finding the Fourth Proportional to 126,571.95, 174,679.88 and 72,874.35

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Solution

The fourth proportional to 126,571.95, 174,679.88 and 72,874.35 is: 100,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,571.95 : 174,679.88 = 72,874.35 : x
  2. Step 2: Convert to fraction form
    126,571.95/174,679.88 = 72,874.35/x
  3. Step 3: Cross multiply
    126,571.95x = 174,679.88 × 72,874.35
  4. Step 4: Simplify right side
    126,571.95x = 12,729,682,348.71
  5. Step 5: Solve for x
    x = 12,729,682,348.71/126,571.95
  6. Step 6: Final answer
    x = 100,572.70

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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.