Home / 281,190.04-421,949.91-103,820.71

Finding the Fourth Proportional to 281,190.04, 421,949.91 and 103,820.71

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Solution

The fourth proportional to 281,190.04, 421,949.91 and 103,820.71 is: 155,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,190.04 : 421,949.91 = 103,820.71 : x
  2. Step 2: Convert to fraction form
    281,190.04/421,949.91 = 103,820.71/x
  3. Step 3: Cross multiply
    281,190.04x = 421,949.91 × 103,820.71
  4. Step 4: Simplify right side
    281,190.04x = 43,807,139,240.64
  5. Step 5: Solve for x
    x = 43,807,139,240.64/281,190.04
  6. Step 6: Final answer
    x = 155,791.93

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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.