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Finding the Fourth Proportional to 195,309.58, 292,987.80 and 68,923.72

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Solution

The fourth proportional to 195,309.58, 292,987.80 and 68,923.72 is: 103,393.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,309.58 : 292,987.80 = 68,923.72 : x
  2. Step 2: Convert to fraction form
    195,309.58/292,987.80 = 68,923.72/x
  3. Step 3: Cross multiply
    195,309.58x = 292,987.80 × 68,923.72
  4. Step 4: Simplify right side
    195,309.58x = 20,193,809,090.62
  5. Step 5: Solve for x
    x = 20,193,809,090.62/195,309.58
  6. Step 6: Final answer
    x = 103,393.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.