Home / 126,884.76-175,021.77-81,621.75

Finding the Fourth Proportional to 126,884.76, 175,021.77 and 81,621.75

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Solution

The fourth proportional to 126,884.76, 175,021.77 and 81,621.75 is: 112,587.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,884.76 : 175,021.77 = 81,621.75 : x
  2. Step 2: Convert to fraction form
    126,884.76/175,021.77 = 81,621.75/x
  3. Step 3: Cross multiply
    126,884.76x = 175,021.77 × 81,621.75
  4. Step 4: Simplify right side
    126,884.76x = 14,285,583,155.50
  5. Step 5: Solve for x
    x = 14,285,583,155.50/126,884.76
  6. Step 6: Final answer
    x = 112,587.07

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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.