Home / 231,134.10-319,001.66-140,518.45

Finding the Fourth Proportional to 231,134.10, 319,001.66 and 140,518.45

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Solution

The fourth proportional to 231,134.10, 319,001.66 and 140,518.45 is: 193,937.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,134.10 : 319,001.66 = 140,518.45 : x
  2. Step 2: Convert to fraction form
    231,134.10/319,001.66 = 140,518.45/x
  3. Step 3: Cross multiply
    231,134.10x = 319,001.66 × 140,518.45
  4. Step 4: Simplify right side
    231,134.10x = 44,825,618,810.63
  5. Step 5: Solve for x
    x = 44,825,618,810.63/231,134.10
  6. Step 6: Final answer
    x = 193,937.71

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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.