Home / 106,180.80-159,278.16-39,619.28

Finding the Fourth Proportional to 106,180.80, 159,278.16 and 39,619.28

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Solution

The fourth proportional to 106,180.80, 159,278.16 and 39,619.28 is: 59,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,180.80 : 159,278.16 = 39,619.28 : x
  2. Step 2: Convert to fraction form
    106,180.80/159,278.16 = 39,619.28/x
  3. Step 3: Cross multiply
    106,180.80x = 159,278.16 × 39,619.28
  4. Step 4: Simplify right side
    106,180.80x = 6,310,486,018.92
  5. Step 5: Solve for x
    x = 6,310,486,018.92/106,180.80
  6. Step 6: Final answer
    x = 59,431.52

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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.