Home / 159,408.16-238,907.12-80,345.44

Finding the Fourth Proportional to 159,408.16, 238,907.12 and 80,345.44

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Solution

The fourth proportional to 159,408.16, 238,907.12 and 80,345.44 is: 120,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,408.16 : 238,907.12 = 80,345.44 : x
  2. Step 2: Convert to fraction form
    159,408.16/238,907.12 = 80,345.44/x
  3. Step 3: Cross multiply
    159,408.16x = 238,907.12 × 80,345.44
  4. Step 4: Simplify right side
    159,408.16x = 19,195,097,675.53
  5. Step 5: Solve for x
    x = 19,195,097,675.53/159,408.16
  6. Step 6: Final answer
    x = 120,414.77

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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.