Home / 99,749.17-137,653.86-63,939.26

Finding the Fourth Proportional to 99,749.17, 137,653.86 and 63,939.26

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Solution

The fourth proportional to 99,749.17, 137,653.86 and 63,939.26 is: 88,236.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,749.17 : 137,653.86 = 63,939.26 : x
  2. Step 2: Convert to fraction form
    99,749.17/137,653.86 = 63,939.26/x
  3. Step 3: Cross multiply
    99,749.17x = 137,653.86 × 63,939.26
  4. Step 4: Simplify right side
    99,749.17x = 8,801,485,754.15
  5. Step 5: Solve for x
    x = 8,801,485,754.15/99,749.17
  6. Step 6: Final answer
    x = 88,236.18

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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.