Home / 158,170.56-218,275.37-86,550.59

Finding the Fourth Proportional to 158,170.56, 218,275.37 and 86,550.59

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Solution

The fourth proportional to 158,170.56, 218,275.37 and 86,550.59 is: 119,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,170.56 : 218,275.37 = 86,550.59 : x
  2. Step 2: Convert to fraction form
    158,170.56/218,275.37 = 86,550.59/x
  3. Step 3: Cross multiply
    158,170.56x = 218,275.37 × 86,550.59
  4. Step 4: Simplify right side
    158,170.56x = 18,891,860,531.84
  5. Step 5: Solve for x
    x = 18,891,860,531.84/158,170.56
  6. Step 6: Final answer
    x = 119,439.80

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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.