Home / 159,536.88-220,158.07-86,940.42

Finding the Fourth Proportional to 159,536.88, 220,158.07 and 86,940.42

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Solution

The fourth proportional to 159,536.88, 220,158.07 and 86,940.42 is: 119,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,536.88 : 220,158.07 = 86,940.42 : x
  2. Step 2: Convert to fraction form
    159,536.88/220,158.07 = 86,940.42/x
  3. Step 3: Cross multiply
    159,536.88x = 220,158.07 × 86,940.42
  4. Step 4: Simplify right side
    159,536.88x = 19,140,635,072.19
  5. Step 5: Solve for x
    x = 19,140,635,072.19/159,536.88
  6. Step 6: Final answer
    x = 119,976.24

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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.