Home / 138,851.04-191,614.56-75,188.94

Finding the Fourth Proportional to 138,851.04, 191,614.56 and 75,188.94

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Solution

The fourth proportional to 138,851.04, 191,614.56 and 75,188.94 is: 103,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,851.04 : 191,614.56 = 75,188.94 : x
  2. Step 2: Convert to fraction form
    138,851.04/191,614.56 = 75,188.94/x
  3. Step 3: Cross multiply
    138,851.04x = 191,614.56 × 75,188.94
  4. Step 4: Simplify right side
    138,851.04x = 14,407,295,654.97
  5. Step 5: Solve for x
    x = 14,407,295,654.97/138,851.04
  6. Step 6: Final answer
    x = 103,760.80

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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.