Home / 126,996.60-175,176-81,733.80

Finding the Fourth Proportional to 126,996.60, 175,176 and 81,733.80

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Solution

The fourth proportional to 126,996.60, 175,176 and 81,733.80 is: 112,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,996.60 : 175,176 = 81,733.80 : x
  2. Step 2: Convert to fraction form
    126,996.60/175,176 = 81,733.80/x
  3. Step 3: Cross multiply
    126,996.60x = 175,176 × 81,733.80
  4. Step 4: Simplify right side
    126,996.60x = 14,317,800,148.80
  5. Step 5: Solve for x
    x = 14,317,800,148.80/126,996.60
  6. Step 6: Final answer
    x = 112,741.60

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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.