Home / 159,086.24-219,539.72-86,489.83

Finding the Fourth Proportional to 159,086.24, 219,539.72 and 86,489.83

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Solution

The fourth proportional to 159,086.24, 219,539.72 and 86,489.83 is: 119,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,086.24 : 219,539.72 = 86,489.83 : x
  2. Step 2: Convert to fraction form
    159,086.24/219,539.72 = 86,489.83/x
  3. Step 3: Cross multiply
    159,086.24x = 219,539.72 × 86,489.83
  4. Step 4: Simplify right side
    159,086.24x = 18,987,952,728.42
  5. Step 5: Solve for x
    x = 18,987,952,728.42/159,086.24
  6. Step 6: Final answer
    x = 119,356.35

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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.