Home / 161,749.20-242,623.80-135,505.20

Finding the Fourth Proportional to 161,749.20, 242,623.80 and 135,505.20

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Solution

The fourth proportional to 161,749.20, 242,623.80 and 135,505.20 is: 203,257.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,749.20 : 242,623.80 = 135,505.20 : x
  2. Step 2: Convert to fraction form
    161,749.20/242,623.80 = 135,505.20/x
  3. Step 3: Cross multiply
    161,749.20x = 242,623.80 × 135,505.20
  4. Step 4: Simplify right side
    161,749.20x = 32,876,786,543.76
  5. Step 5: Solve for x
    x = 32,876,786,543.76/161,749.20
  6. Step 6: Final answer
    x = 203,257.80

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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.