Home / 140,695.68-194,158.56-76,163.46

Finding the Fourth Proportional to 140,695.68, 194,158.56 and 76,163.46

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Solution

The fourth proportional to 140,695.68, 194,158.56 and 76,163.46 is: 105,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,695.68 : 194,158.56 = 76,163.46 : x
  2. Step 2: Convert to fraction form
    140,695.68/194,158.56 = 76,163.46/x
  3. Step 3: Cross multiply
    140,695.68x = 194,158.56 × 76,163.46
  4. Step 4: Simplify right side
    140,695.68x = 14,787,787,423.23
  5. Step 5: Solve for x
    x = 14,787,787,423.23/140,695.68
  6. Step 6: Final answer
    x = 105,104.77

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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.