Home / 205,655.39-283,818.90-115,019.79

Finding the Fourth Proportional to 205,655.39, 283,818.90 and 115,019.79

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Solution

The fourth proportional to 205,655.39, 283,818.90 and 115,019.79 is: 158,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,655.39 : 283,818.90 = 115,019.79 : x
  2. Step 2: Convert to fraction form
    205,655.39/283,818.90 = 115,019.79/x
  3. Step 3: Cross multiply
    205,655.39x = 283,818.90 × 115,019.79
  4. Step 4: Simplify right side
    205,655.39x = 32,644,790,276.03
  5. Step 5: Solve for x
    x = 32,644,790,276.03/205,655.39
  6. Step 6: Final answer
    x = 158,735.40

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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.