Home / 281,166.24-421,727.76-103,640.16

Finding the Fourth Proportional to 281,166.24, 421,727.76 and 103,640.16

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Solution

The fourth proportional to 281,166.24, 421,727.76 and 103,640.16 is: 155,452.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,166.24 : 421,727.76 = 103,640.16 : x
  2. Step 2: Convert to fraction form
    281,166.24/421,727.76 = 103,640.16/x
  3. Step 3: Cross multiply
    281,166.24x = 421,727.76 × 103,640.16
  4. Step 4: Simplify right side
    281,166.24x = 43,707,932,522.84
  5. Step 5: Solve for x
    x = 43,707,932,522.84/281,166.24
  6. Step 6: Final answer
    x = 155,452.28

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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.