Home / 126,335.36-174,353.46-72,638.84

Finding the Fourth Proportional to 126,335.36, 174,353.46 and 72,638.84

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Solution

The fourth proportional to 126,335.36, 174,353.46 and 72,638.84 is: 100,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,335.36 : 174,353.46 = 72,638.84 : x
  2. Step 2: Convert to fraction form
    126,335.36/174,353.46 = 72,638.84/x
  3. Step 3: Cross multiply
    126,335.36x = 174,353.46 × 72,638.84
  4. Step 4: Simplify right side
    126,335.36x = 12,664,833,084.39
  5. Step 5: Solve for x
    x = 12,664,833,084.39/126,335.36
  6. Step 6: Final answer
    x = 100,247.73

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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.