Home / 101,178.07-139,625.94-55,856.11

Finding the Fourth Proportional to 101,178.07, 139,625.94 and 55,856.11

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Solution

The fourth proportional to 101,178.07, 139,625.94 and 55,856.11 is: 77,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,178.07 : 139,625.94 = 55,856.11 : x
  2. Step 2: Convert to fraction form
    101,178.07/139,625.94 = 55,856.11/x
  3. Step 3: Cross multiply
    101,178.07x = 139,625.94 × 55,856.11
  4. Step 4: Simplify right side
    101,178.07x = 7,798,961,863.49
  5. Step 5: Solve for x
    x = 7,798,961,863.49/101,178.07
  6. Step 6: Final answer
    x = 77,081.54

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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.