Home / 158,181.22-218,290.10-86,561.25

Finding the Fourth Proportional to 158,181.22, 218,290.10 and 86,561.25

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Solution

The fourth proportional to 158,181.22, 218,290.10 and 86,561.25 is: 119,454.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,181.22 : 218,290.10 = 86,561.25 : x
  2. Step 2: Convert to fraction form
    158,181.22/218,290.10 = 86,561.25/x
  3. Step 3: Cross multiply
    158,181.22x = 218,290.10 × 86,561.25
  4. Step 4: Simplify right side
    158,181.22x = 18,895,462,394.37
  5. Step 5: Solve for x
    x = 18,895,462,394.37/158,181.22
  6. Step 6: Final answer
    x = 119,454.52

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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.