Home / 215,816.04-323,758.62-91,158.12

Finding the Fourth Proportional to 215,816.04, 323,758.62 and 91,158.12

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Solution

The fourth proportional to 215,816.04, 323,758.62 and 91,158.12 is: 136,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,816.04 : 323,758.62 = 91,158.12 : x
  2. Step 2: Convert to fraction form
    215,816.04/323,758.62 = 91,158.12/x
  3. Step 3: Cross multiply
    215,816.04x = 323,758.62 × 91,158.12
  4. Step 4: Simplify right side
    215,816.04x = 29,513,227,132.99
  5. Step 5: Solve for x
    x = 29,513,227,132.99/215,816.04
  6. Step 6: Final answer
    x = 136,751.78

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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.