Home / 126,869.92-175,078.08-70,281.76

Finding the Fourth Proportional to 126,869.92, 175,078.08 and 70,281.76

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Solution

The fourth proportional to 126,869.92, 175,078.08 and 70,281.76 is: 96,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,869.92 : 175,078.08 = 70,281.76 : x
  2. Step 2: Convert to fraction form
    126,869.92/175,078.08 = 70,281.76/x
  3. Step 3: Cross multiply
    126,869.92x = 175,078.08 × 70,281.76
  4. Step 4: Simplify right side
    126,869.92x = 12,304,795,599.82
  5. Step 5: Solve for x
    x = 12,304,795,599.82/126,869.92
  6. Step 6: Final answer
    x = 96,987.49

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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.