Home / 161,813.10-242,590.05-68,241.90

Finding the Fourth Proportional to 161,813.10, 242,590.05 and 68,241.90

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Solution

The fourth proportional to 161,813.10, 242,590.05 and 68,241.90 is: 102,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,813.10 : 242,590.05 = 68,241.90 : x
  2. Step 2: Convert to fraction form
    161,813.10/242,590.05 = 68,241.90/x
  3. Step 3: Cross multiply
    161,813.10x = 242,590.05 × 68,241.90
  4. Step 4: Simplify right side
    161,813.10x = 16,554,805,933.10
  5. Step 5: Solve for x
    x = 16,554,805,933.10/161,813.10
  6. Step 6: Final answer
    x = 102,308.19

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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.