Home / 285,951.12-428,647.76-136,151.16

Finding the Fourth Proportional to 285,951.12, 428,647.76 and 136,151.16

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Solution

The fourth proportional to 285,951.12, 428,647.76 and 136,151.16 is: 204,093.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,951.12 : 428,647.76 = 136,151.16 : x
  2. Step 2: Convert to fraction form
    285,951.12/428,647.76 = 136,151.16/x
  3. Step 3: Cross multiply
    285,951.12x = 428,647.76 × 136,151.16
  4. Step 4: Simplify right side
    285,951.12x = 58,360,889,755.40
  5. Step 5: Solve for x
    x = 58,360,889,755.40/285,951.12
  6. Step 6: Final answer
    x = 204,093.94

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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.