Home / 101,488.09-152,305.97-45,391.54

Finding the Fourth Proportional to 101,488.09, 152,305.97 and 45,391.54

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Solution

The fourth proportional to 101,488.09, 152,305.97 and 45,391.54 is: 68,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,488.09 : 152,305.97 = 45,391.54 : x
  2. Step 2: Convert to fraction form
    101,488.09/152,305.97 = 45,391.54/x
  3. Step 3: Cross multiply
    101,488.09x = 152,305.97 × 45,391.54
  4. Step 4: Simplify right side
    101,488.09x = 6,913,402,462.67
  5. Step 5: Solve for x
    x = 6,913,402,462.67/101,488.09
  6. Step 6: Final answer
    x = 68,120.33

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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.