Home / 102,454.62-141,394.59-57,135.66

Finding the Fourth Proportional to 102,454.62, 141,394.59 and 57,135.66

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Solution

The fourth proportional to 102,454.62, 141,394.59 and 57,135.66 is: 78,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,454.62 : 141,394.59 = 57,135.66 : x
  2. Step 2: Convert to fraction form
    102,454.62/141,394.59 = 57,135.66/x
  3. Step 3: Cross multiply
    102,454.62x = 141,394.59 × 57,135.66
  4. Step 4: Simplify right side
    102,454.62x = 8,078,673,220.08
  5. Step 5: Solve for x
    x = 8,078,673,220.08/102,454.62
  6. Step 6: Final answer
    x = 78,851.23

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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.