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Finding the Fourth Proportional to 173,687.60, 260,142.60 and 142,583.60

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Solution

The fourth proportional to 173,687.60, 260,142.60 and 142,583.60 is: 213,556.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,687.60 : 260,142.60 = 142,583.60 : x
  2. Step 2: Convert to fraction form
    173,687.60/260,142.60 = 142,583.60/x
  3. Step 3: Cross multiply
    173,687.60x = 260,142.60 × 142,583.60
  4. Step 4: Simplify right side
    173,687.60x = 37,092,068,421.36
  5. Step 5: Solve for x
    x = 37,092,068,421.36/173,687.60
  6. Step 6: Final answer
    x = 213,556.23

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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.