Home / 101,178.08-139,625.94-55,856.12

Finding the Fourth Proportional to 101,178.08, 139,625.94 and 55,856.12

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Solution

The fourth proportional to 101,178.08, 139,625.94 and 55,856.12 is: 77,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,178.08 : 139,625.94 = 55,856.12 : x
  2. Step 2: Convert to fraction form
    101,178.08/139,625.94 = 55,856.12/x
  3. Step 3: Cross multiply
    101,178.08x = 139,625.94 × 55,856.12
  4. Step 4: Simplify right side
    101,178.08x = 7,798,962,561.62
  5. Step 5: Solve for x
    x = 7,798,962,561.62/101,178.08
  6. Step 6: Final answer
    x = 77,081.55

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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.