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Finding the Fourth Proportional to 171,981.60, 257,583.60 and 101,997.60

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Solution

The fourth proportional to 171,981.60, 257,583.60 and 101,997.60 is: 152,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,981.60 : 257,583.60 = 101,997.60 : x
  2. Step 2: Convert to fraction form
    171,981.60/257,583.60 = 101,997.60/x
  3. Step 3: Cross multiply
    171,981.60x = 257,583.60 × 101,997.60
  4. Step 4: Simplify right side
    171,981.60x = 26,272,908,999.36
  5. Step 5: Solve for x
    x = 26,272,908,999.36/171,981.60
  6. Step 6: Final answer
    x = 152,765.81

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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.