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Finding the Fourth Proportional to 181,205, 250,056.05 and 100,637.72

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Solution

The fourth proportional to 181,205, 250,056.05 and 100,637.72 is: 138,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,205 : 250,056.05 = 100,637.72 : x
  2. Step 2: Convert to fraction form
    181,205/250,056.05 = 100,637.72/x
  3. Step 3: Cross multiply
    181,205x = 250,056.05 × 100,637.72
  4. Step 4: Simplify right side
    181,205x = 25,165,070,744.21
  5. Step 5: Solve for x
    x = 25,165,070,744.21/181,205
  6. Step 6: Final answer
    x = 138,876.25

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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.