Home / 106,450.85-146,905.55-61,138.02

Finding the Fourth Proportional to 106,450.85, 146,905.55 and 61,138.02

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Solution

The fourth proportional to 106,450.85, 146,905.55 and 61,138.02 is: 84,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,450.85 : 146,905.55 = 61,138.02 : x
  2. Step 2: Convert to fraction form
    106,450.85/146,905.55 = 61,138.02/x
  3. Step 3: Cross multiply
    106,450.85x = 146,905.55 × 61,138.02
  4. Step 4: Simplify right side
    106,450.85x = 8,981,514,148.32
  5. Step 5: Solve for x
    x = 8,981,514,148.32/106,450.85
  6. Step 6: Final answer
    x = 84,372.41

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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.