Home / 151,160.08-208,578.88-90,717.92

Finding the Fourth Proportional to 151,160.08, 208,578.88 and 90,717.92

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Solution

The fourth proportional to 151,160.08, 208,578.88 and 90,717.92 is: 125,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,160.08 : 208,578.88 = 90,717.92 : x
  2. Step 2: Convert to fraction form
    151,160.08/208,578.88 = 90,717.92/x
  3. Step 3: Cross multiply
    151,160.08x = 208,578.88 × 90,717.92
  4. Step 4: Simplify right side
    151,160.08x = 18,921,842,149.53
  5. Step 5: Solve for x
    x = 18,921,842,149.53/151,160.08
  6. Step 6: Final answer
    x = 125,177.51

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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.