Home / 281,115.22-421,729.27-103,623.14

Finding the Fourth Proportional to 281,115.22, 421,729.27 and 103,623.14

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Solution

The fourth proportional to 281,115.22, 421,729.27 and 103,623.14 is: 155,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,115.22 : 421,729.27 = 103,623.14 : x
  2. Step 2: Convert to fraction form
    281,115.22/421,729.27 = 103,623.14/x
  3. Step 3: Cross multiply
    281,115.22x = 421,729.27 × 103,623.14
  4. Step 4: Simplify right side
    281,115.22x = 43,700,911,187.31
  5. Step 5: Solve for x
    x = 43,700,911,187.31/281,115.22
  6. Step 6: Final answer
    x = 155,455.51

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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.