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Finding the Fourth Proportional to 161,894.80, 243,060.90 and 102,845.80

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Solution

The fourth proportional to 161,894.80, 243,060.90 and 102,845.80 is: 154,407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,894.80 : 243,060.90 = 102,845.80 : x
  2. Step 2: Convert to fraction form
    161,894.80/243,060.90 = 102,845.80/x
  3. Step 3: Cross multiply
    161,894.80x = 243,060.90 × 102,845.80
  4. Step 4: Simplify right side
    161,894.80x = 24,997,792,709.22
  5. Step 5: Solve for x
    x = 24,997,792,709.22/161,894.80
  6. Step 6: Final answer
    x = 154,407.63

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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.