Home / 102,022.35-140,787.99-56,699.16

Finding the Fourth Proportional to 102,022.35, 140,787.99 and 56,699.16

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Solution

The fourth proportional to 102,022.35, 140,787.99 and 56,699.16 is: 78,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,022.35 : 140,787.99 = 56,699.16 : x
  2. Step 2: Convert to fraction form
    102,022.35/140,787.99 = 56,699.16/x
  3. Step 3: Cross multiply
    102,022.35x = 140,787.99 × 56,699.16
  4. Step 4: Simplify right side
    102,022.35x = 7,982,560,771.09
  5. Step 5: Solve for x
    x = 7,982,560,771.09/102,022.35
  6. Step 6: Final answer
    x = 78,243.26

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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.