Home / 126,356.69-174,372.12-72,652.20

Finding the Fourth Proportional to 126,356.69, 174,372.12 and 72,652.20

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Solution

The fourth proportional to 126,356.69, 174,372.12 and 72,652.20 is: 100,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,356.69 : 174,372.12 = 72,652.20 : x
  2. Step 2: Convert to fraction form
    126,356.69/174,372.12 = 72,652.20/x
  3. Step 3: Cross multiply
    126,356.69x = 174,372.12 × 72,652.20
  4. Step 4: Simplify right side
    126,356.69x = 12,668,518,136.66
  5. Step 5: Solve for x
    x = 12,668,518,136.66/126,356.69
  6. Step 6: Final answer
    x = 100,259.98

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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.