Home / 140,919.36-194,468.67-77,255.79

Finding the Fourth Proportional to 140,919.36, 194,468.67 and 77,255.79

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Solution

The fourth proportional to 140,919.36, 194,468.67 and 77,255.79 is: 106,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,919.36 : 194,468.67 = 77,255.79 : x
  2. Step 2: Convert to fraction form
    140,919.36/194,468.67 = 77,255.79/x
  3. Step 3: Cross multiply
    140,919.36x = 194,468.67 × 77,255.79
  4. Step 4: Simplify right side
    140,919.36x = 15,023,830,731.10
  5. Step 5: Solve for x
    x = 15,023,830,731.10/140,919.36
  6. Step 6: Final answer
    x = 106,612.96

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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.