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Finding the Fourth Proportional to 181,200.90, 250,060.64 and 100,635.98

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Solution

The fourth proportional to 181,200.90, 250,060.64 and 100,635.98 is: 138,879.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,200.90 : 250,060.64 = 100,635.98 : x
  2. Step 2: Convert to fraction form
    181,200.90/250,060.64 = 100,635.98/x
  3. Step 3: Cross multiply
    181,200.90x = 250,060.64 × 100,635.98
  4. Step 4: Simplify right side
    181,200.90x = 25,165,095,812.34
  5. Step 5: Solve for x
    x = 25,165,095,812.34/181,200.90
  6. Step 6: Final answer
    x = 138,879.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.