Home / 153,930.72-212,226.66-126,233.04

Finding the Fourth Proportional to 153,930.72, 212,226.66 and 126,233.04

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Solution

The fourth proportional to 153,930.72, 212,226.66 and 126,233.04 is: 174,039.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,930.72 : 212,226.66 = 126,233.04 : x
  2. Step 2: Convert to fraction form
    153,930.72/212,226.66 = 126,233.04/x
  3. Step 3: Cross multiply
    153,930.72x = 212,226.66 × 126,233.04
  4. Step 4: Simplify right side
    153,930.72x = 26,790,016,460.85
  5. Step 5: Solve for x
    x = 26,790,016,460.85/153,930.72
  6. Step 6: Final answer
    x = 174,039.44

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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.