Home / 103,910.10-143,395.47-56,163.33

Finding the Fourth Proportional to 103,910.10, 143,395.47 and 56,163.33

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Solution

The fourth proportional to 103,910.10, 143,395.47 and 56,163.33 is: 77,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,910.10 : 143,395.47 = 56,163.33 : x
  2. Step 2: Convert to fraction form
    103,910.10/143,395.47 = 56,163.33/x
  3. Step 3: Cross multiply
    103,910.10x = 143,395.47 × 56,163.33
  4. Step 4: Simplify right side
    103,910.10x = 8,053,567,102.12
  5. Step 5: Solve for x
    x = 8,053,567,102.12/103,910.10
  6. Step 6: Final answer
    x = 77,505.14

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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.