Home / 140,645.02-194,090.36-76,986.86

Finding the Fourth Proportional to 140,645.02, 194,090.36 and 76,986.86

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Solution

The fourth proportional to 140,645.02, 194,090.36 and 76,986.86 is: 106,241.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,645.02 : 194,090.36 = 76,986.86 : x
  2. Step 2: Convert to fraction form
    140,645.02/194,090.36 = 76,986.86/x
  3. Step 3: Cross multiply
    140,645.02x = 194,090.36 × 76,986.86
  4. Step 4: Simplify right side
    140,645.02x = 14,942,407,372.67
  5. Step 5: Solve for x
    x = 14,942,407,372.67/140,645.02
  6. Step 6: Final answer
    x = 106,241.99

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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.