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Finding the Fourth Proportional to 161,456.96, 242,175.60 and 77,276.96

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Solution

The fourth proportional to 161,456.96, 242,175.60 and 77,276.96 is: 115,910.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,456.96 : 242,175.60 = 77,276.96 : x
  2. Step 2: Convert to fraction form
    161,456.96/242,175.60 = 77,276.96/x
  3. Step 3: Cross multiply
    161,456.96x = 242,175.60 × 77,276.96
  4. Step 4: Simplify right side
    161,456.96x = 18,714,594,154.18
  5. Step 5: Solve for x
    x = 18,714,594,154.18/161,456.96
  6. Step 6: Final answer
    x = 115,910.73

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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.