Home / 231,554.72-319,562.68-129,590.39

Finding the Fourth Proportional to 231,554.72, 319,562.68 and 129,590.39

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Solution

The fourth proportional to 231,554.72, 319,562.68 and 129,590.39 is: 178,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,554.72 : 319,562.68 = 129,590.39 : x
  2. Step 2: Convert to fraction form
    231,554.72/319,562.68 = 129,590.39/x
  3. Step 3: Cross multiply
    231,554.72x = 319,562.68 × 129,590.39
  4. Step 4: Simplify right side
    231,554.72x = 41,412,252,330.65
  5. Step 5: Solve for x
    x = 41,412,252,330.65/231,554.72
  6. Step 6: Final answer
    x = 178,844.35

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1.5x scale

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.