Home / 159,013.20-219,442.24-87,395.04

Finding the Fourth Proportional to 159,013.20, 219,442.24 and 87,395.04

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Solution

The fourth proportional to 159,013.20, 219,442.24 and 87,395.04 is: 120,607.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,013.20 : 219,442.24 = 87,395.04 : x
  2. Step 2: Convert to fraction form
    159,013.20/219,442.24 = 87,395.04/x
  3. Step 3: Cross multiply
    159,013.20x = 219,442.24 × 87,395.04
  4. Step 4: Simplify right side
    159,013.20x = 19,178,163,342.49
  5. Step 5: Solve for x
    x = 19,178,163,342.49/159,013.20
  6. Step 6: Final answer
    x = 120,607.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.