Home / 126,240.39-174,220.28-72,546.81

Finding the Fourth Proportional to 126,240.39, 174,220.28 and 72,546.81

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Solution

The fourth proportional to 126,240.39, 174,220.28 and 72,546.81 is: 100,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,240.39 : 174,220.28 = 72,546.81 : x
  2. Step 2: Convert to fraction form
    126,240.39/174,220.28 = 72,546.81/x
  3. Step 3: Cross multiply
    126,240.39x = 174,220.28 × 72,546.81
  4. Step 4: Simplify right side
    126,240.39x = 12,639,125,188.57
  5. Step 5: Solve for x
    x = 12,639,125,188.57/126,240.39
  6. Step 6: Final answer
    x = 100,119.50

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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.