Home / 155,491.44-214,569.30-87,511.24

Finding the Fourth Proportional to 155,491.44, 214,569.30 and 87,511.24

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Solution

The fourth proportional to 155,491.44, 214,569.30 and 87,511.24 is: 120,760.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,491.44 : 214,569.30 = 87,511.24 : x
  2. Step 2: Convert to fraction form
    155,491.44/214,569.30 = 87,511.24/x
  3. Step 3: Cross multiply
    155,491.44x = 214,569.30 × 87,511.24
  4. Step 4: Simplify right side
    155,491.44x = 18,777,225,508.93
  5. Step 5: Solve for x
    x = 18,777,225,508.93/155,491.44
  6. Step 6: Final answer
    x = 120,760.51

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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.