Home / 209,769.59-289,502.93-128,093.33

Finding the Fourth Proportional to 209,769.59, 289,502.93 and 128,093.33

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Solution

The fourth proportional to 209,769.59, 289,502.93 and 128,093.33 is: 176,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,769.59 : 289,502.93 = 128,093.33 : x
  2. Step 2: Convert to fraction form
    209,769.59/289,502.93 = 128,093.33/x
  3. Step 3: Cross multiply
    209,769.59x = 289,502.93 × 128,093.33
  4. Step 4: Simplify right side
    209,769.59x = 37,083,392,260.48
  5. Step 5: Solve for x
    x = 37,083,392,260.48/209,769.59
  6. Step 6: Final answer
    x = 176,781.55

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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.