Home / 151,919.47-209,630.97-83,932.39

Finding the Fourth Proportional to 151,919.47, 209,630.97 and 83,932.39

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Solution

The fourth proportional to 151,919.47, 209,630.97 and 83,932.39 is: 115,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,919.47 : 209,630.97 = 83,932.39 : x
  2. Step 2: Convert to fraction form
    151,919.47/209,630.97 = 83,932.39/x
  3. Step 3: Cross multiply
    151,919.47x = 209,630.97 × 83,932.39
  4. Step 4: Simplify right side
    151,919.47x = 17,594,827,412.98
  5. Step 5: Solve for x
    x = 17,594,827,412.98/151,919.47
  6. Step 6: Final answer
    x = 115,816.81

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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.