Home / 140,079.10-193,313.64-79,659.58

Finding the Fourth Proportional to 140,079.10, 193,313.64 and 79,659.58

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Solution

The fourth proportional to 140,079.10, 193,313.64 and 79,659.58 is: 109,932.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,079.10 : 193,313.64 = 79,659.58 : x
  2. Step 2: Convert to fraction form
    140,079.10/193,313.64 = 79,659.58/x
  3. Step 3: Cross multiply
    140,079.10x = 193,313.64 × 79,659.58
  4. Step 4: Simplify right side
    140,079.10x = 15,399,283,370.67
  5. Step 5: Solve for x
    x = 15,399,283,370.67/140,079.10
  6. Step 6: Final answer
    x = 109,932.77

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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.