Home / 68,151.19-102,243.26-21,404.07

Finding the Fourth Proportional to 68,151.19, 102,243.26 and 21,404.07

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Solution

The fourth proportional to 68,151.19, 102,243.26 and 21,404.07 is: 32,111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,151.19 : 102,243.26 = 21,404.07 : x
  2. Step 2: Convert to fraction form
    68,151.19/102,243.26 = 21,404.07/x
  3. Step 3: Cross multiply
    68,151.19x = 102,243.26 × 21,404.07
  4. Step 4: Simplify right side
    68,151.19x = 2,188,421,894.07
  5. Step 5: Solve for x
    x = 2,188,421,894.07/68,151.19
  6. Step 6: Final answer
    x = 32,111.28

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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.