Home / 159,536.14-220,157.03-86,939.68

Finding the Fourth Proportional to 159,536.14, 220,157.03 and 86,939.68

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Solution

The fourth proportional to 159,536.14, 220,157.03 and 86,939.68 is: 119,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,536.14 : 220,157.03 = 86,939.68 : x
  2. Step 2: Convert to fraction form
    159,536.14/220,157.03 = 86,939.68/x
  3. Step 3: Cross multiply
    159,536.14x = 220,157.03 × 86,939.68
  4. Step 4: Simplify right side
    159,536.14x = 19,140,380,637.17
  5. Step 5: Solve for x
    x = 19,140,380,637.17/159,536.14
  6. Step 6: Final answer
    x = 119,975.21

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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.