Home / 140,165.10-193,422.42-76,502.88

Finding the Fourth Proportional to 140,165.10, 193,422.42 and 76,502.88

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Solution

The fourth proportional to 140,165.10, 193,422.42 and 76,502.88 is: 105,571.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,165.10 : 193,422.42 = 76,502.88 : x
  2. Step 2: Convert to fraction form
    140,165.10/193,422.42 = 76,502.88/x
  3. Step 3: Cross multiply
    140,165.10x = 193,422.42 × 76,502.88
  4. Step 4: Simplify right side
    140,165.10x = 14,797,372,186.57
  5. Step 5: Solve for x
    x = 14,797,372,186.57/140,165.10
  6. Step 6: Final answer
    x = 105,571.02

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1.5x scale

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.