Home / 123,029.84-169,781.17-66,441.22

Finding the Fourth Proportional to 123,029.84, 169,781.17 and 66,441.22

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Solution

The fourth proportional to 123,029.84, 169,781.17 and 66,441.22 is: 91,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,029.84 : 169,781.17 = 66,441.22 : x
  2. Step 2: Convert to fraction form
    123,029.84/169,781.17 = 66,441.22/x
  3. Step 3: Cross multiply
    123,029.84x = 169,781.17 × 66,441.22
  4. Step 4: Simplify right side
    123,029.84x = 11,280,467,477.27
  5. Step 5: Solve for x
    x = 11,280,467,477.27/123,029.84
  6. Step 6: Final answer
    x = 91,688.87

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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.