Home / 106,644.30-159,867.57-40,128.51

Finding the Fourth Proportional to 106,644.30, 159,867.57 and 40,128.51

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Solution

The fourth proportional to 106,644.30, 159,867.57 and 40,128.51 is: 60,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,644.30 : 159,867.57 = 40,128.51 : x
  2. Step 2: Convert to fraction form
    106,644.30/159,867.57 = 40,128.51/x
  3. Step 3: Cross multiply
    106,644.30x = 159,867.57 × 40,128.51
  4. Step 4: Simplify right side
    106,644.30x = 6,415,248,131.41
  5. Step 5: Solve for x
    x = 6,415,248,131.41/106,644.30
  6. Step 6: Final answer
    x = 60,155.57

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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.