Home / 181,389.22-272,175.99-81,529.30

Finding the Fourth Proportional to 181,389.22, 272,175.99 and 81,529.30

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Solution

The fourth proportional to 181,389.22, 272,175.99 and 81,529.30 is: 122,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,389.22 : 272,175.99 = 81,529.30 : x
  2. Step 2: Convert to fraction form
    181,389.22/272,175.99 = 81,529.30/x
  3. Step 3: Cross multiply
    181,389.22x = 272,175.99 × 81,529.30
  4. Step 4: Simplify right side
    181,389.22x = 22,190,317,941.51
  5. Step 5: Solve for x
    x = 22,190,317,941.51/181,389.22
  6. Step 6: Final answer
    x = 122,335.37

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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.