Home / 126,972-175,221.52-70,391.84

Finding the Fourth Proportional to 126,972, 175,221.52 and 70,391.84

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Solution

The fourth proportional to 126,972, 175,221.52 and 70,391.84 is: 97,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,972 : 175,221.52 = 70,391.84 : x
  2. Step 2: Convert to fraction form
    126,972/175,221.52 = 70,391.84/x
  3. Step 3: Cross multiply
    126,972x = 175,221.52 × 70,391.84
  4. Step 4: Simplify right side
    126,972x = 12,334,165,200.40
  5. Step 5: Solve for x
    x = 12,334,165,200.40/126,972
  6. Step 6: Final answer
    x = 97,140.83

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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.