Home / 126,542.66-174,647.75-72,823.86

Finding the Fourth Proportional to 126,542.66, 174,647.75 and 72,823.86

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Solution

The fourth proportional to 126,542.66, 174,647.75 and 72,823.86 is: 100,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,542.66 : 174,647.75 = 72,823.86 : x
  2. Step 2: Convert to fraction form
    126,542.66/174,647.75 = 72,823.86/x
  3. Step 3: Cross multiply
    126,542.66x = 174,647.75 × 72,823.86
  4. Step 4: Simplify right side
    126,542.66x = 12,718,522,931.20
  5. Step 5: Solve for x
    x = 12,718,522,931.20/126,542.66
  6. Step 6: Final answer
    x = 100,507.79

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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.