Home / 159,536.24-220,159.04-86,938.96

Finding the Fourth Proportional to 159,536.24, 220,159.04 and 86,938.96

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Solution

The fourth proportional to 159,536.24, 220,159.04 and 86,938.96 is: 119,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,536.24 : 220,159.04 = 86,938.96 : x
  2. Step 2: Convert to fraction form
    159,536.24/220,159.04 = 86,938.96/x
  3. Step 3: Cross multiply
    159,536.24x = 220,159.04 × 86,938.96
  4. Step 4: Simplify right side
    159,536.24x = 19,140,397,972.20
  5. Step 5: Solve for x
    x = 19,140,397,972.20/159,536.24
  6. Step 6: Final answer
    x = 119,975.24

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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.