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Finding the Fourth Proportional to 181,308.34, 250,209.87 and 100,739.26

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Solution

The fourth proportional to 181,308.34, 250,209.87 and 100,739.26 is: 139,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,308.34 : 250,209.87 = 100,739.26 : x
  2. Step 2: Convert to fraction form
    181,308.34/250,209.87 = 100,739.26/x
  3. Step 3: Cross multiply
    181,308.34x = 250,209.87 × 100,739.26
  4. Step 4: Simplify right side
    181,308.34x = 25,205,957,148.50
  5. Step 5: Solve for x
    x = 25,205,957,148.50/181,308.34
  6. Step 6: Final answer
    x = 139,022.60

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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.