Home / 126,859.13-175,065.59-76,558.13

Finding the Fourth Proportional to 126,859.13, 175,065.59 and 76,558.13

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Solution

The fourth proportional to 126,859.13, 175,065.59 and 76,558.13 is: 105,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,859.13 : 175,065.59 = 76,558.13 : x
  2. Step 2: Convert to fraction form
    126,859.13/175,065.59 = 76,558.13/x
  3. Step 3: Cross multiply
    126,859.13x = 175,065.59 × 76,558.13
  4. Step 4: Simplify right side
    126,859.13x = 13,402,694,197.75
  5. Step 5: Solve for x
    x = 13,402,694,197.75/126,859.13
  6. Step 6: Final answer
    x = 105,650.21

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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.