Home / 102,177.78-153,067.38-57,669.90

Finding the Fourth Proportional to 102,177.78, 153,067.38 and 57,669.90

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Solution

The fourth proportional to 102,177.78, 153,067.38 and 57,669.90 is: 86,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,177.78 : 153,067.38 = 57,669.90 : x
  2. Step 2: Convert to fraction form
    102,177.78/153,067.38 = 57,669.90/x
  3. Step 3: Cross multiply
    102,177.78x = 153,067.38 × 57,669.90
  4. Step 4: Simplify right side
    102,177.78x = 8,827,380,497.86
  5. Step 5: Solve for x
    x = 8,827,380,497.86/102,177.78
  6. Step 6: Final answer
    x = 86,392.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.