Home / 140,392.26-193,740.21-79,132.86

Finding the Fourth Proportional to 140,392.26, 193,740.21 and 79,132.86

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Solution

The fourth proportional to 140,392.26, 193,740.21 and 79,132.86 is: 109,202.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,392.26 : 193,740.21 = 79,132.86 : x
  2. Step 2: Convert to fraction form
    140,392.26/193,740.21 = 79,132.86/x
  3. Step 3: Cross multiply
    140,392.26x = 193,740.21 × 79,132.86
  4. Step 4: Simplify right side
    140,392.26x = 15,331,216,914.30
  5. Step 5: Solve for x
    x = 15,331,216,914.30/140,392.26
  6. Step 6: Final answer
    x = 109,202.72

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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.