Home / 285,733.56-428,603.58-108,192.36

Finding the Fourth Proportional to 285,733.56, 428,603.58 and 108,192.36

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Solution

The fourth proportional to 285,733.56, 428,603.58 and 108,192.36 is: 162,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,733.56 : 428,603.58 = 108,192.36 : x
  2. Step 2: Convert to fraction form
    285,733.56/428,603.58 = 108,192.36/x
  3. Step 3: Cross multiply
    285,733.56x = 428,603.58 × 108,192.36
  4. Step 4: Simplify right side
    285,733.56x = 46,371,632,824.65
  5. Step 5: Solve for x
    x = 46,371,632,824.65/285,733.56
  6. Step 6: Final answer
    x = 162,289.77

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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.