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Finding the Fourth Proportional to 162,583.70, 243,771.48 and 78,175.73

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Solution

The fourth proportional to 162,583.70, 243,771.48 and 78,175.73 is: 117,213.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,583.70 : 243,771.48 = 78,175.73 : x
  2. Step 2: Convert to fraction form
    162,583.70/243,771.48 = 78,175.73/x
  3. Step 3: Cross multiply
    162,583.70x = 243,771.48 × 78,175.73
  4. Step 4: Simplify right side
    162,583.70x = 19,057,014,011.61
  5. Step 5: Solve for x
    x = 19,057,014,011.61/162,583.70
  6. Step 6: Final answer
    x = 117,213.56

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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.