Home / 181,620.69-272,428.30-81,710.33

Finding the Fourth Proportional to 181,620.69, 272,428.30 and 81,710.33

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Solution

The fourth proportional to 181,620.69, 272,428.30 and 81,710.33 is: 122,564.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,620.69 : 272,428.30 = 81,710.33 : x
  2. Step 2: Convert to fraction form
    181,620.69/272,428.30 = 81,710.33/x
  3. Step 3: Cross multiply
    181,620.69x = 272,428.30 × 81,710.33
  4. Step 4: Simplify right side
    181,620.69x = 22,260,206,294.34
  5. Step 5: Solve for x
    x = 22,260,206,294.34/181,620.69
  6. Step 6: Final answer
    x = 122,564.26

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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.