Home / 102,108.28-140,894.22-57,387.64

Finding the Fourth Proportional to 102,108.28, 140,894.22 and 57,387.64

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Solution

The fourth proportional to 102,108.28, 140,894.22 and 57,387.64 is: 79,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,108.28 : 140,894.22 = 57,387.64 : x
  2. Step 2: Convert to fraction form
    102,108.28/140,894.22 = 57,387.64/x
  3. Step 3: Cross multiply
    102,108.28x = 140,894.22 × 57,387.64
  4. Step 4: Simplify right side
    102,108.28x = 8,085,586,775.44
  5. Step 5: Solve for x
    x = 8,085,586,775.44/102,108.28
  6. Step 6: Final answer
    x = 79,186.40

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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.