Home / 148,275.43-204,622.91-81,207.43

Finding the Fourth Proportional to 148,275.43, 204,622.91 and 81,207.43

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Solution

The fourth proportional to 148,275.43, 204,622.91 and 81,207.43 is: 112,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,275.43 : 204,622.91 = 81,207.43 : x
  2. Step 2: Convert to fraction form
    148,275.43/204,622.91 = 81,207.43/x
  3. Step 3: Cross multiply
    148,275.43x = 204,622.91 × 81,207.43
  4. Step 4: Simplify right side
    148,275.43x = 16,616,900,027.15
  5. Step 5: Solve for x
    x = 16,616,900,027.15/148,275.43
  6. Step 6: Final answer
    x = 112,067.79

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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.