Home / 126,653.60-174,781.20-70,063.76

Finding the Fourth Proportional to 126,653.60, 174,781.20 and 70,063.76

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Solution

The fourth proportional to 126,653.60, 174,781.20 and 70,063.76 is: 96,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,653.60 : 174,781.20 = 70,063.76 : x
  2. Step 2: Convert to fraction form
    126,653.60/174,781.20 = 70,063.76/x
  3. Step 3: Cross multiply
    126,653.60x = 174,781.20 × 70,063.76
  4. Step 4: Simplify right side
    126,653.60x = 12,245,828,049.31
  5. Step 5: Solve for x
    x = 12,245,828,049.31/126,653.60
  6. Step 6: Final answer
    x = 96,687.56

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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.