Home / 149,732.20-206,670.18-86,077

Finding the Fourth Proportional to 149,732.20, 206,670.18 and 86,077

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Solution

The fourth proportional to 149,732.20, 206,670.18 and 86,077 is: 118,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,732.20 : 206,670.18 = 86,077 : x
  2. Step 2: Convert to fraction form
    149,732.20/206,670.18 = 86,077/x
  3. Step 3: Cross multiply
    149,732.20x = 206,670.18 × 86,077
  4. Step 4: Simplify right side
    149,732.20x = 17,789,549,083.86
  5. Step 5: Solve for x
    x = 17,789,549,083.86/149,732.20
  6. Step 6: Final answer
    x = 118,809.11

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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.