Home / 101,968.86-140,768.19-63,749.64

Finding the Fourth Proportional to 101,968.86, 140,768.19 and 63,749.64

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Solution

The fourth proportional to 101,968.86, 140,768.19 and 63,749.64 is: 88,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,968.86 : 140,768.19 = 63,749.64 : x
  2. Step 2: Convert to fraction form
    101,968.86/140,768.19 = 63,749.64/x
  3. Step 3: Cross multiply
    101,968.86x = 140,768.19 × 63,749.64
  4. Step 4: Simplify right side
    101,968.86x = 8,973,921,435.95
  5. Step 5: Solve for x
    x = 8,973,921,435.95/101,968.86
  6. Step 6: Final answer
    x = 88,006.49

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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.