Home / 158,842.42-219,203.15-86,245.43

Finding the Fourth Proportional to 158,842.42, 219,203.15 and 86,245.43

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Solution

The fourth proportional to 158,842.42, 219,203.15 and 86,245.43 is: 119,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,842.42 : 219,203.15 = 86,245.43 : x
  2. Step 2: Convert to fraction form
    158,842.42/219,203.15 = 86,245.43/x
  3. Step 3: Cross multiply
    158,842.42x = 219,203.15 × 86,245.43
  4. Step 4: Simplify right side
    158,842.42x = 18,905,268,401.86
  5. Step 5: Solve for x
    x = 18,905,268,401.86/158,842.42
  6. Step 6: Final answer
    x = 119,019.02

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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.