Home / 325,073.23-487,488.58-111,780.81

Finding the Fourth Proportional to 325,073.23, 487,488.58 and 111,780.81

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Solution

The fourth proportional to 325,073.23, 487,488.58 and 111,780.81 is: 167,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,073.23 : 487,488.58 = 111,780.81 : x
  2. Step 2: Convert to fraction form
    325,073.23/487,488.58 = 111,780.81/x
  3. Step 3: Cross multiply
    325,073.23x = 487,488.58 × 111,780.81
  4. Step 4: Simplify right side
    325,073.23x = 54,491,868,338.15
  5. Step 5: Solve for x
    x = 54,491,868,338.15/325,073.23
  6. Step 6: Final answer
    x = 167,629.52

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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.