Home / 106,747.39-160,115.31-54,155.51

Finding the Fourth Proportional to 106,747.39, 160,115.31 and 54,155.51

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Solution

The fourth proportional to 106,747.39, 160,115.31 and 54,155.51 is: 81,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,747.39 : 160,115.31 = 54,155.51 : x
  2. Step 2: Convert to fraction form
    106,747.39/160,115.31 = 54,155.51/x
  3. Step 3: Cross multiply
    106,747.39x = 160,115.31 × 54,155.51
  4. Step 4: Simplify right side
    106,747.39x = 8,671,125,871.57
  5. Step 5: Solve for x
    x = 8,671,125,871.57/106,747.39
  6. Step 6: Final answer
    x = 81,230.33

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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.