Home / 102,452.32-141,378.78-57,134.98

Finding the Fourth Proportional to 102,452.32, 141,378.78 and 57,134.98

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Solution

The fourth proportional to 102,452.32, 141,378.78 and 57,134.98 is: 78,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,452.32 : 141,378.78 = 57,134.98 : x
  2. Step 2: Convert to fraction form
    102,452.32/141,378.78 = 57,134.98/x
  3. Step 3: Cross multiply
    102,452.32x = 141,378.78 × 57,134.98
  4. Step 4: Simplify right side
    102,452.32x = 8,077,673,767.72
  5. Step 5: Solve for x
    x = 8,077,673,767.72/102,452.32
  6. Step 6: Final answer
    x = 78,843.25

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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.