Home / 215,362.81-323,192.04-75,121.45

Finding the Fourth Proportional to 215,362.81, 323,192.04 and 75,121.45

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Solution

The fourth proportional to 215,362.81, 323,192.04 and 75,121.45 is: 112,733.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,362.81 : 323,192.04 = 75,121.45 : x
  2. Step 2: Convert to fraction form
    215,362.81/323,192.04 = 75,121.45/x
  3. Step 3: Cross multiply
    215,362.81x = 323,192.04 × 75,121.45
  4. Step 4: Simplify right side
    215,362.81x = 24,278,654,673.26
  5. Step 5: Solve for x
    x = 24,278,654,673.26/215,362.81
  6. Step 6: Final answer
    x = 112,733.74

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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.