Home / 159,532.81-220,155.68-86,936.26

Finding the Fourth Proportional to 159,532.81, 220,155.68 and 86,936.26

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Solution

The fourth proportional to 159,532.81, 220,155.68 and 86,936.26 is: 119,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,532.81 : 220,155.68 = 86,936.26 : x
  2. Step 2: Convert to fraction form
    159,532.81/220,155.68 = 86,936.26/x
  3. Step 3: Cross multiply
    159,532.81x = 220,155.68 × 86,936.26
  4. Step 4: Simplify right side
    159,532.81x = 19,139,511,436.96
  5. Step 5: Solve for x
    x = 19,139,511,436.96/159,532.81
  6. Step 6: Final answer
    x = 119,972.26

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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.