Home / 114,287.04-171,132.36-91,978.56

Finding the Fourth Proportional to 114,287.04, 171,132.36 and 91,978.56

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Solution

The fourth proportional to 114,287.04, 171,132.36 and 91,978.56 is: 137,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,287.04 : 171,132.36 = 91,978.56 : x
  2. Step 2: Convert to fraction form
    114,287.04/171,132.36 = 91,978.56/x
  3. Step 3: Cross multiply
    114,287.04x = 171,132.36 × 91,978.56
  4. Step 4: Simplify right side
    114,287.04x = 15,740,508,042.20
  5. Step 5: Solve for x
    x = 15,740,508,042.20/114,287.04
  6. Step 6: Final answer
    x = 137,727.85

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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.