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Finding the Fourth Proportional to 140,294.30, 193,558.11 and 79,849.81

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Solution

The fourth proportional to 140,294.30, 193,558.11 and 79,849.81 is: 110,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,294.30 : 193,558.11 = 79,849.81 : x
  2. Step 2: Convert to fraction form
    140,294.30/193,558.11 = 79,849.81/x
  3. Step 3: Cross multiply
    140,294.30x = 193,558.11 × 79,849.81
  4. Step 4: Simplify right side
    140,294.30x = 15,455,577,339.67
  5. Step 5: Solve for x
    x = 15,455,577,339.67/140,294.30
  6. Step 6: Final answer
    x = 110,165.40

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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.