Home / 161,814.10-242,591.55-68,242.90

Finding the Fourth Proportional to 161,814.10, 242,591.55 and 68,242.90

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Solution

The fourth proportional to 161,814.10, 242,591.55 and 68,242.90 is: 102,309.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,814.10 : 242,591.55 = 68,242.90 : x
  2. Step 2: Convert to fraction form
    161,814.10/242,591.55 = 68,242.90/x
  3. Step 3: Cross multiply
    161,814.10x = 242,591.55 × 68,242.90
  4. Step 4: Simplify right side
    161,814.10x = 16,555,150,887.50
  5. Step 5: Solve for x
    x = 16,555,150,887.50/161,814.10
  6. Step 6: Final answer
    x = 102,309.69

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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.