Home / 126,321.40-174,320.94-72,605.02

Finding the Fourth Proportional to 126,321.40, 174,320.94 and 72,605.02

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Solution

The fourth proportional to 126,321.40, 174,320.94 and 72,605.02 is: 100,193.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,321.40 : 174,320.94 = 72,605.02 : x
  2. Step 2: Convert to fraction form
    126,321.40/174,320.94 = 72,605.02/x
  3. Step 3: Cross multiply
    126,321.40x = 174,320.94 × 72,605.02
  4. Step 4: Simplify right side
    126,321.40x = 12,656,575,335.12
  5. Step 5: Solve for x
    x = 12,656,575,335.12/126,321.40
  6. Step 6: Final answer
    x = 100,193.44

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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.