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Finding the Fourth Proportional to 101,233.68, 139,703.62 and 55,910.62

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Solution

The fourth proportional to 101,233.68, 139,703.62 and 55,910.62 is: 77,157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,233.68 : 139,703.62 = 55,910.62 : x
  2. Step 2: Convert to fraction form
    101,233.68/139,703.62 = 55,910.62/x
  3. Step 3: Cross multiply
    101,233.68x = 139,703.62 × 55,910.62
  4. Step 4: Simplify right side
    101,233.68x = 7,810,916,150.13
  5. Step 5: Solve for x
    x = 7,810,916,150.13/101,233.68
  6. Step 6: Final answer
    x = 77,157.29

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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.