Home / 281,146.75-421,720.53-114,934.75

Finding the Fourth Proportional to 281,146.75, 421,720.53 and 114,934.75

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Solution

The fourth proportional to 281,146.75, 421,720.53 and 114,934.75 is: 172,402.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,146.75 : 421,720.53 = 114,934.75 : x
  2. Step 2: Convert to fraction form
    281,146.75/421,720.53 = 114,934.75/x
  3. Step 3: Cross multiply
    281,146.75x = 421,720.53 × 114,934.75
  4. Step 4: Simplify right side
    281,146.75x = 48,470,343,685.42
  5. Step 5: Solve for x
    x = 48,470,343,685.42/281,146.75
  6. Step 6: Final answer
    x = 172,402.29

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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.