Home / 137,372.20-189,568.02-76,941.88

Finding the Fourth Proportional to 137,372.20, 189,568.02 and 76,941.88

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Solution

The fourth proportional to 137,372.20, 189,568.02 and 76,941.88 is: 106,176.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,372.20 : 189,568.02 = 76,941.88 : x
  2. Step 2: Convert to fraction form
    137,372.20/189,568.02 = 76,941.88/x
  3. Step 3: Cross multiply
    137,372.20x = 189,568.02 × 76,941.88
  4. Step 4: Simplify right side
    137,372.20x = 14,585,719,846.68
  5. Step 5: Solve for x
    x = 14,585,719,846.68/137,372.20
  6. Step 6: Final answer
    x = 106,176.65

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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.