Home / 231,837.40-347,756.10-74,081.80

Finding the Fourth Proportional to 231,837.40, 347,756.10 and 74,081.80

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Solution

The fourth proportional to 231,837.40, 347,756.10 and 74,081.80 is: 111,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,837.40 : 347,756.10 = 74,081.80 : x
  2. Step 2: Convert to fraction form
    231,837.40/347,756.10 = 74,081.80/x
  3. Step 3: Cross multiply
    231,837.40x = 347,756.10 × 74,081.80
  4. Step 4: Simplify right side
    231,837.40x = 25,762,397,848.98
  5. Step 5: Solve for x
    x = 25,762,397,848.98/231,837.40
  6. Step 6: Final answer
    x = 111,122.70

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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.