Home / 205,456.64-283,509.05-140,981.18

Finding the Fourth Proportional to 205,456.64, 283,509.05 and 140,981.18

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Solution

The fourth proportional to 205,456.64, 283,509.05 and 140,981.18 is: 194,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,456.64 : 283,509.05 = 140,981.18 : x
  2. Step 2: Convert to fraction form
    205,456.64/283,509.05 = 140,981.18/x
  3. Step 3: Cross multiply
    205,456.64x = 283,509.05 × 140,981.18
  4. Step 4: Simplify right side
    205,456.64x = 39,969,438,287.23
  5. Step 5: Solve for x
    x = 39,969,438,287.23/205,456.64
  6. Step 6: Final answer
    x = 194,539.54

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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.