Home / 231,828.40-347,742.60-74,072.80

Finding the Fourth Proportional to 231,828.40, 347,742.60 and 74,072.80

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Solution

The fourth proportional to 231,828.40, 347,742.60 and 74,072.80 is: 111,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,828.40 : 347,742.60 = 74,072.80 : x
  2. Step 2: Convert to fraction form
    231,828.40/347,742.60 = 74,072.80/x
  3. Step 3: Cross multiply
    231,828.40x = 347,742.60 × 74,072.80
  4. Step 4: Simplify right side
    231,828.40x = 25,758,268,061.28
  5. Step 5: Solve for x
    x = 25,758,268,061.28/231,828.40
  6. Step 6: Final answer
    x = 111,109.20

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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.