Home / 181,279.67-272,011.64-81,419.49

Finding the Fourth Proportional to 181,279.67, 272,011.64 and 81,419.49

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Solution

The fourth proportional to 181,279.67, 272,011.64 and 81,419.49 is: 122,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,279.67 : 272,011.64 = 81,419.49 : x
  2. Step 2: Convert to fraction form
    181,279.67/272,011.64 = 81,419.49/x
  3. Step 3: Cross multiply
    181,279.67x = 272,011.64 × 81,419.49
  4. Step 4: Simplify right side
    181,279.67x = 22,147,048,595.77
  5. Step 5: Solve for x
    x = 22,147,048,595.77/181,279.67
  6. Step 6: Final answer
    x = 122,170.62

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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.