Home / 231,473.03-347,121.45-81,685.40

Finding the Fourth Proportional to 231,473.03, 347,121.45 and 81,685.40

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Solution

The fourth proportional to 231,473.03, 347,121.45 and 81,685.40 is: 122,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,473.03 : 347,121.45 = 81,685.40 : x
  2. Step 2: Convert to fraction form
    231,473.03/347,121.45 = 81,685.40/x
  3. Step 3: Cross multiply
    231,473.03x = 347,121.45 × 81,685.40
  4. Step 4: Simplify right side
    231,473.03x = 28,354,752,756.22
  5. Step 5: Solve for x
    x = 28,354,752,756.22/231,473.03
  6. Step 6: Final answer
    x = 122,497.01

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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.