Home / 140,918.78-194,462.76-77,255.18

Finding the Fourth Proportional to 140,918.78, 194,462.76 and 77,255.18

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Solution

The fourth proportional to 140,918.78, 194,462.76 and 77,255.18 is: 106,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,918.78 : 194,462.76 = 77,255.18 : x
  2. Step 2: Convert to fraction form
    140,918.78/194,462.76 = 77,255.18/x
  3. Step 3: Cross multiply
    140,918.78x = 194,462.76 × 77,255.18
  4. Step 4: Simplify right side
    140,918.78x = 15,023,255,527.10
  5. Step 5: Solve for x
    x = 15,023,255,527.10/140,918.78
  6. Step 6: Final answer
    x = 106,609.32

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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.