Home / 158,236.25-218,366.06-86,617.80

Finding the Fourth Proportional to 158,236.25, 218,366.06 and 86,617.80

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Solution

The fourth proportional to 158,236.25, 218,366.06 and 86,617.80 is: 119,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,236.25 : 218,366.06 = 86,617.80 : x
  2. Step 2: Convert to fraction form
    158,236.25/218,366.06 = 86,617.80/x
  3. Step 3: Cross multiply
    158,236.25x = 218,366.06 × 86,617.80
  4. Step 4: Simplify right side
    158,236.25x = 18,914,387,278.78
  5. Step 5: Solve for x
    x = 18,914,387,278.78/158,236.25
  6. Step 6: Final answer
    x = 119,532.58

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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.