Home / 215,435.92-323,008.08-75,118

Finding the Fourth Proportional to 215,435.92, 323,008.08 and 75,118

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Solution

The fourth proportional to 215,435.92, 323,008.08 and 75,118 is: 112,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,435.92 : 323,008.08 = 75,118 : x
  2. Step 2: Convert to fraction form
    215,435.92/323,008.08 = 75,118/x
  3. Step 3: Cross multiply
    215,435.92x = 323,008.08 × 75,118
  4. Step 4: Simplify right side
    215,435.92x = 24,263,720,953.44
  5. Step 5: Solve for x
    x = 24,263,720,953.44/215,435.92
  6. Step 6: Final answer
    x = 112,626.16

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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.