Home / 231,133.10-319,000.28-140,517.45

Finding the Fourth Proportional to 231,133.10, 319,000.28 and 140,517.45

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Solution

The fourth proportional to 231,133.10, 319,000.28 and 140,517.45 is: 193,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,133.10 : 319,000.28 = 140,517.45 : x
  2. Step 2: Convert to fraction form
    231,133.10/319,000.28 = 140,517.45/x
  3. Step 3: Cross multiply
    231,133.10x = 319,000.28 × 140,517.45
  4. Step 4: Simplify right side
    231,133.10x = 44,825,105,192.30
  5. Step 5: Solve for x
    x = 44,825,105,192.30/231,133.10
  6. Step 6: Final answer
    x = 193,936.33

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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.