Home / 140,087.14-193,312.38-79,672.48

Finding the Fourth Proportional to 140,087.14, 193,312.38 and 79,672.48

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Solution

The fourth proportional to 140,087.14, 193,312.38 and 79,672.48 is: 109,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,087.14 : 193,312.38 = 79,672.48 : x
  2. Step 2: Convert to fraction form
    140,087.14/193,312.38 = 79,672.48/x
  3. Step 3: Cross multiply
    140,087.14x = 193,312.38 × 79,672.48
  4. Step 4: Simplify right side
    140,087.14x = 15,401,676,729.30
  5. Step 5: Solve for x
    x = 15,401,676,729.30/140,087.14
  6. Step 6: Final answer
    x = 109,943.54

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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.