Home / 126,372.02-189,463.19-76,441.86

Finding the Fourth Proportional to 126,372.02, 189,463.19 and 76,441.86

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Solution

The fourth proportional to 126,372.02, 189,463.19 and 76,441.86 is: 114,605.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372.02 : 189,463.19 = 76,441.86 : x
  2. Step 2: Convert to fraction form
    126,372.02/189,463.19 = 76,441.86/x
  3. Step 3: Cross multiply
    126,372.02x = 189,463.19 × 76,441.86
  4. Step 4: Simplify right side
    126,372.02x = 14,482,918,262.92
  5. Step 5: Solve for x
    x = 14,482,918,262.92/126,372.02
  6. Step 6: Final answer
    x = 114,605.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.