Home / 158,151.80-218,249.34-86,532.12

Finding the Fourth Proportional to 158,151.80, 218,249.34 and 86,532.12

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Solution

The fourth proportional to 158,151.80, 218,249.34 and 86,532.12 is: 119,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,151.80 : 218,249.34 = 86,532.12 : x
  2. Step 2: Convert to fraction form
    158,151.80/218,249.34 = 86,532.12/x
  3. Step 3: Cross multiply
    158,151.80x = 218,249.34 × 86,532.12
  4. Step 4: Simplify right side
    158,151.80x = 18,885,578,078.80
  5. Step 5: Solve for x
    x = 18,885,578,078.80/158,151.80
  6. Step 6: Final answer
    x = 119,414.25

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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.