Home / 205,645.51-283,789.20-115,001.65

Finding the Fourth Proportional to 205,645.51, 283,789.20 and 115,001.65

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Solution

The fourth proportional to 205,645.51, 283,789.20 and 115,001.65 is: 158,701.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,645.51 : 283,789.20 = 115,001.65 : x
  2. Step 2: Convert to fraction form
    205,645.51/283,789.20 = 115,001.65/x
  3. Step 3: Cross multiply
    205,645.51x = 283,789.20 × 115,001.65
  4. Step 4: Simplify right side
    205,645.51x = 32,636,226,252.18
  5. Step 5: Solve for x
    x = 32,636,226,252.18/205,645.51
  6. Step 6: Final answer
    x = 158,701.38

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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.