Home / 146,042.45-201,540.12-81,517.85

Finding the Fourth Proportional to 146,042.45, 201,540.12 and 81,517.85

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Solution

The fourth proportional to 146,042.45, 201,540.12 and 81,517.85 is: 112,495.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,042.45 : 201,540.12 = 81,517.85 : x
  2. Step 2: Convert to fraction form
    146,042.45/201,540.12 = 81,517.85/x
  3. Step 3: Cross multiply
    146,042.45x = 201,540.12 × 81,517.85
  4. Step 4: Simplify right side
    146,042.45x = 16,429,117,271.14
  5. Step 5: Solve for x
    x = 16,429,117,271.14/146,042.45
  6. Step 6: Final answer
    x = 112,495.49

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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.