Home / 215,996.29-324,139.07-89,636.65

Finding the Fourth Proportional to 215,996.29, 324,139.07 and 89,636.65

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Solution

The fourth proportional to 215,996.29, 324,139.07 and 89,636.65 is: 134,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,996.29 : 324,139.07 = 89,636.65 : x
  2. Step 2: Convert to fraction form
    215,996.29/324,139.07 = 89,636.65/x
  3. Step 3: Cross multiply
    215,996.29x = 324,139.07 × 89,636.65
  4. Step 4: Simplify right side
    215,996.29x = 29,054,740,368.92
  5. Step 5: Solve for x
    x = 29,054,740,368.92/215,996.29
  6. Step 6: Final answer
    x = 134,515.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.