Home / 151,660.26-209,293.32-83,680.20

Finding the Fourth Proportional to 151,660.26, 209,293.32 and 83,680.20

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Solution

The fourth proportional to 151,660.26, 209,293.32 and 83,680.20 is: 115,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,660.26 : 209,293.32 = 83,680.20 : x
  2. Step 2: Convert to fraction form
    151,660.26/209,293.32 = 83,680.20/x
  3. Step 3: Cross multiply
    151,660.26x = 209,293.32 × 83,680.20
  4. Step 4: Simplify right side
    151,660.26x = 17,513,706,876.26
  5. Step 5: Solve for x
    x = 17,513,706,876.26/151,660.26
  6. Step 6: Final answer
    x = 115,479.87

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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.