Home / 106,015.68-159,018.48-31,132.80

Finding the Fourth Proportional to 106,015.68, 159,018.48 and 31,132.80

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Solution

The fourth proportional to 106,015.68, 159,018.48 and 31,132.80 is: 46,697.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,015.68 : 159,018.48 = 31,132.80 : x
  2. Step 2: Convert to fraction form
    106,015.68/159,018.48 = 31,132.80/x
  3. Step 3: Cross multiply
    106,015.68x = 159,018.48 × 31,132.80
  4. Step 4: Simplify right side
    106,015.68x = 4,950,690,534.14
  5. Step 5: Solve for x
    x = 4,950,690,534.14/106,015.68
  6. Step 6: Final answer
    x = 46,697.72

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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.