Home / 286,015.07-428,924.18-108,572.82

Finding the Fourth Proportional to 286,015.07, 428,924.18 and 108,572.82

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Solution

The fourth proportional to 286,015.07, 428,924.18 and 108,572.82 is: 162,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,015.07 : 428,924.18 = 108,572.82 : x
  2. Step 2: Convert to fraction form
    286,015.07/428,924.18 = 108,572.82/x
  3. Step 3: Cross multiply
    286,015.07x = 428,924.18 × 108,572.82
  4. Step 4: Simplify right side
    286,015.07x = 46,569,507,245.92
  5. Step 5: Solve for x
    x = 46,569,507,245.92/286,015.07
  6. Step 6: Final answer
    x = 162,821.87

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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.