Home / 102,108.16-140,921.92-57,396.16

Finding the Fourth Proportional to 102,108.16, 140,921.92 and 57,396.16

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Solution

The fourth proportional to 102,108.16, 140,921.92 and 57,396.16 is: 79,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,108.16 : 140,921.92 = 57,396.16 : x
  2. Step 2: Convert to fraction form
    102,108.16/140,921.92 = 57,396.16/x
  3. Step 3: Cross multiply
    102,108.16x = 140,921.92 × 57,396.16
  4. Step 4: Simplify right side
    102,108.16x = 8,088,377,067.83
  5. Step 5: Solve for x
    x = 8,088,377,067.83/102,108.16
  6. Step 6: Final answer
    x = 79,213.82

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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.