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Finding the Fourth Proportional to 161,861.55, 242,734.73 and 73,157.55

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Solution

The fourth proportional to 161,861.55, 242,734.73 and 73,157.55 is: 109,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861.55 : 242,734.73 = 73,157.55 : x
  2. Step 2: Convert to fraction form
    161,861.55/242,734.73 = 73,157.55/x
  3. Step 3: Cross multiply
    161,861.55x = 242,734.73 × 73,157.55
  4. Step 4: Simplify right side
    161,861.55x = 17,757,877,780.92
  5. Step 5: Solve for x
    x = 17,757,877,780.92/161,861.55
  6. Step 6: Final answer
    x = 109,710.29

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1.5x scale

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.