Home / 68,150.43-102,129.93-58,103.21

Finding the Fourth Proportional to 68,150.43, 102,129.93 and 58,103.21

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Solution

The fourth proportional to 68,150.43, 102,129.93 and 58,103.21 is: 87,073.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,150.43 : 102,129.93 = 58,103.21 : x
  2. Step 2: Convert to fraction form
    68,150.43/102,129.93 = 58,103.21/x
  3. Step 3: Cross multiply
    68,150.43x = 102,129.93 × 58,103.21
  4. Step 4: Simplify right side
    68,150.43x = 5,934,077,025.40
  5. Step 5: Solve for x
    x = 5,934,077,025.40/68,150.43
  6. Step 6: Final answer
    x = 87,073.21

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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.