Home / 126,537.48-174,621.87-72,821.52

Finding the Fourth Proportional to 126,537.48, 174,621.87 and 72,821.52

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Solution

The fourth proportional to 126,537.48, 174,621.87 and 72,821.52 is: 100,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,537.48 : 174,621.87 = 72,821.52 : x
  2. Step 2: Convert to fraction form
    126,537.48/174,621.87 = 72,821.52/x
  3. Step 3: Cross multiply
    126,537.48x = 174,621.87 × 72,821.52
  4. Step 4: Simplify right side
    126,537.48x = 12,716,229,998.64
  5. Step 5: Solve for x
    x = 12,716,229,998.64/126,537.48
  6. Step 6: Final answer
    x = 100,493.78

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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.