Home / 106,138.15-159,182.38-39,579.91

Finding the Fourth Proportional to 106,138.15, 159,182.38 and 39,579.91

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Solution

The fourth proportional to 106,138.15, 159,182.38 and 39,579.91 is: 59,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,138.15 : 159,182.38 = 39,579.91 : x
  2. Step 2: Convert to fraction form
    106,138.15/159,182.38 = 39,579.91/x
  3. Step 3: Cross multiply
    106,138.15x = 159,182.38 × 39,579.91
  4. Step 4: Simplify right side
    106,138.15x = 6,300,424,273.99
  5. Step 5: Solve for x
    x = 6,300,424,273.99/106,138.15
  6. Step 6: Final answer
    x = 59,360.60

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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.