Home / 126,839.52-175,011.84-76,528.80

Finding the Fourth Proportional to 126,839.52, 175,011.84 and 76,528.80

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Solution

The fourth proportional to 126,839.52, 175,011.84 and 76,528.80 is: 105,593.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,839.52 : 175,011.84 = 76,528.80 : x
  2. Step 2: Convert to fraction form
    126,839.52/175,011.84 = 76,528.80/x
  3. Step 3: Cross multiply
    126,839.52x = 175,011.84 × 76,528.80
  4. Step 4: Simplify right side
    126,839.52x = 13,393,446,100.99
  5. Step 5: Solve for x
    x = 13,393,446,100.99/126,839.52
  6. Step 6: Final answer
    x = 105,593.64

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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.