Home / 159,084.35-219,537.14-86,487.95

Finding the Fourth Proportional to 159,084.35, 219,537.14 and 86,487.95

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Solution

The fourth proportional to 159,084.35, 219,537.14 and 86,487.95 is: 119,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,084.35 : 219,537.14 = 86,487.95 : x
  2. Step 2: Convert to fraction form
    159,084.35/219,537.14 = 86,487.95/x
  3. Step 3: Cross multiply
    159,084.35x = 219,537.14 × 86,487.95
  4. Step 4: Simplify right side
    159,084.35x = 18,987,317,303.87
  5. Step 5: Solve for x
    x = 18,987,317,303.87/159,084.35
  6. Step 6: Final answer
    x = 119,353.77

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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.