Home / 205,484.69-283,488.77-128,959.13

Finding the Fourth Proportional to 205,484.69, 283,488.77 and 128,959.13

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Solution

The fourth proportional to 205,484.69, 283,488.77 and 128,959.13 is: 177,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,484.69 : 283,488.77 = 128,959.13 : x
  2. Step 2: Convert to fraction form
    205,484.69/283,488.77 = 128,959.13/x
  3. Step 3: Cross multiply
    205,484.69x = 283,488.77 × 128,959.13
  4. Step 4: Simplify right side
    205,484.69x = 36,558,465,143.97
  5. Step 5: Solve for x
    x = 36,558,465,143.97/205,484.69
  6. Step 6: Final answer
    x = 177,913.33

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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.