Home / 100,261.26-138,360.52-59,976.72

Finding the Fourth Proportional to 100,261.26, 138,360.52 and 59,976.72

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Solution

The fourth proportional to 100,261.26, 138,360.52 and 59,976.72 is: 82,767.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,261.26 : 138,360.52 = 59,976.72 : x
  2. Step 2: Convert to fraction form
    100,261.26/138,360.52 = 59,976.72/x
  3. Step 3: Cross multiply
    100,261.26x = 138,360.52 × 59,976.72
  4. Step 4: Simplify right side
    100,261.26x = 8,298,410,167.09
  5. Step 5: Solve for x
    x = 8,298,410,167.09/100,261.26
  6. Step 6: Final answer
    x = 82,767.86

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1.5x scale

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.