Home / 158,181.21-218,290.07-86,561.24

Finding the Fourth Proportional to 158,181.21, 218,290.07 and 86,561.24

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Solution

The fourth proportional to 158,181.21, 218,290.07 and 86,561.24 is: 119,454.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,181.21 : 218,290.07 = 86,561.24 : x
  2. Step 2: Convert to fraction form
    158,181.21/218,290.07 = 86,561.24/x
  3. Step 3: Cross multiply
    158,181.21x = 218,290.07 × 86,561.24
  4. Step 4: Simplify right side
    158,181.21x = 18,895,458,263.84
  5. Step 5: Solve for x
    x = 18,895,458,263.84/158,181.21
  6. Step 6: Final answer
    x = 119,454.51

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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.