Home / 231,828.80-347,743.20-74,062.40

Finding the Fourth Proportional to 231,828.80, 347,743.20 and 74,062.40

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Solution

The fourth proportional to 231,828.80, 347,743.20 and 74,062.40 is: 111,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,828.80 : 347,743.20 = 74,062.40 : x
  2. Step 2: Convert to fraction form
    231,828.80/347,743.20 = 74,062.40/x
  3. Step 3: Cross multiply
    231,828.80x = 347,743.20 × 74,062.40
  4. Step 4: Simplify right side
    231,828.80x = 25,754,695,975.68
  5. Step 5: Solve for x
    x = 25,754,695,975.68/231,828.80
  6. Step 6: Final answer
    x = 111,093.60

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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.