Home / 126,974.34-175,212.81-70,380.90

Finding the Fourth Proportional to 126,974.34, 175,212.81 and 70,380.90

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Solution

The fourth proportional to 126,974.34, 175,212.81 and 70,380.90 is: 97,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,974.34 : 175,212.81 = 70,380.90 : x
  2. Step 2: Convert to fraction form
    126,974.34/175,212.81 = 70,380.90/x
  3. Step 3: Cross multiply
    126,974.34x = 175,212.81 × 70,380.90
  4. Step 4: Simplify right side
    126,974.34x = 12,331,635,259.33
  5. Step 5: Solve for x
    x = 12,331,635,259.33/126,974.34
  6. Step 6: Final answer
    x = 97,119.11

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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.