Home / 281,108.76-421,829.46-103,739.28

Finding the Fourth Proportional to 281,108.76, 421,829.46 and 103,739.28

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Solution

The fourth proportional to 281,108.76, 421,829.46 and 103,739.28 is: 155,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,108.76 : 421,829.46 = 103,739.28 : x
  2. Step 2: Convert to fraction form
    281,108.76/421,829.46 = 103,739.28/x
  3. Step 3: Cross multiply
    281,108.76x = 421,829.46 × 103,739.28
  4. Step 4: Simplify right side
    281,108.76x = 43,760,284,463.19
  5. Step 5: Solve for x
    x = 43,760,284,463.19/281,108.76
  6. Step 6: Final answer
    x = 155,670.30

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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.