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Finding the Fourth Proportional to 181,751.80, 250,819.80 and 100,089.64

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Solution

The fourth proportional to 181,751.80, 250,819.80 and 100,089.64 is: 138,124.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,751.80 : 250,819.80 = 100,089.64 : x
  2. Step 2: Convert to fraction form
    181,751.80/250,819.80 = 100,089.64/x
  3. Step 3: Cross multiply
    181,751.80x = 250,819.80 × 100,089.64
  4. Step 4: Simplify right side
    181,751.80x = 25,104,463,486.87
  5. Step 5: Solve for x
    x = 25,104,463,486.87/181,751.80
  6. Step 6: Final answer
    x = 138,124.98

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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.