Home / 181,390.22-272,177.49-81,530.30

Finding the Fourth Proportional to 181,390.22, 272,177.49 and 81,530.30

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Solution

The fourth proportional to 181,390.22, 272,177.49 and 81,530.30 is: 122,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,390.22 : 272,177.49 = 81,530.30 : x
  2. Step 2: Convert to fraction form
    181,390.22/272,177.49 = 81,530.30/x
  3. Step 3: Cross multiply
    181,390.22x = 272,177.49 × 81,530.30
  4. Step 4: Simplify right side
    181,390.22x = 22,190,712,412.95
  5. Step 5: Solve for x
    x = 22,190,712,412.95/181,390.22
  6. Step 6: Final answer
    x = 122,336.87

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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.