Home / 215,679.36-323,562.78-75,536.40

Finding the Fourth Proportional to 215,679.36, 323,562.78 and 75,536.40

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Solution

The fourth proportional to 215,679.36, 323,562.78 and 75,536.40 is: 113,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,679.36 : 323,562.78 = 75,536.40 : x
  2. Step 2: Convert to fraction form
    215,679.36/323,562.78 = 75,536.40/x
  3. Step 3: Cross multiply
    215,679.36x = 323,562.78 × 75,536.40
  4. Step 4: Simplify right side
    215,679.36x = 24,440,767,575.19
  5. Step 5: Solve for x
    x = 24,440,767,575.19/215,679.36
  6. Step 6: Final answer
    x = 113,319.92

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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.