Home / 104,358.74-143,816.19-102,439.31

Finding the Fourth Proportional to 104,358.74, 143,816.19 and 102,439.31

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Solution

The fourth proportional to 104,358.74, 143,816.19 and 102,439.31 is: 141,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,358.74 : 143,816.19 = 102,439.31 : x
  2. Step 2: Convert to fraction form
    104,358.74/143,816.19 = 102,439.31/x
  3. Step 3: Cross multiply
    104,358.74x = 143,816.19 × 102,439.31
  4. Step 4: Simplify right side
    104,358.74x = 14,732,431,270.43
  5. Step 5: Solve for x
    x = 14,732,431,270.43/104,358.74
  6. Step 6: Final answer
    x = 141,171.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.