Home / 101,366.19-139,832.37-63,119.61

Finding the Fourth Proportional to 101,366.19, 139,832.37 and 63,119.61

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Solution

The fourth proportional to 101,366.19, 139,832.37 and 63,119.61 is: 87,072.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,366.19 : 139,832.37 = 63,119.61 : x
  2. Step 2: Convert to fraction form
    101,366.19/139,832.37 = 63,119.61/x
  3. Step 3: Cross multiply
    101,366.19x = 139,832.37 × 63,119.61
  4. Step 4: Simplify right side
    101,366.19x = 8,826,164,659.78
  5. Step 5: Solve for x
    x = 8,826,164,659.78/101,366.19
  6. Step 6: Final answer
    x = 87,072.08

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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.