Home / 140,021.66-193,173.42-81,046.34

Finding the Fourth Proportional to 140,021.66, 193,173.42 and 81,046.34

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Solution

The fourth proportional to 140,021.66, 193,173.42 and 81,046.34 is: 111,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,021.66 : 193,173.42 = 81,046.34 : x
  2. Step 2: Convert to fraction form
    140,021.66/193,173.42 = 81,046.34/x
  3. Step 3: Cross multiply
    140,021.66x = 193,173.42 × 81,046.34
  4. Step 4: Simplify right side
    140,021.66x = 15,655,997,710.42
  5. Step 5: Solve for x
    x = 15,655,997,710.42/140,021.66
  6. Step 6: Final answer
    x = 111,811.26

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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.