Home / 161,581.10-242,157.80-123,997.55

Finding the Fourth Proportional to 161,581.10, 242,157.80 and 123,997.55

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Solution

The fourth proportional to 161,581.10, 242,157.80 and 123,997.55 is: 185,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,581.10 : 242,157.80 = 123,997.55 : x
  2. Step 2: Convert to fraction form
    161,581.10/242,157.80 = 123,997.55/x
  3. Step 3: Cross multiply
    161,581.10x = 242,157.80 × 123,997.55
  4. Step 4: Simplify right side
    161,581.10x = 30,026,973,012.59
  5. Step 5: Solve for x
    x = 30,026,973,012.59/161,581.10
  6. Step 6: Final answer
    x = 185,832.22

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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.