Home / 102,722.99-141,757.03-57,401.08

Finding the Fourth Proportional to 102,722.99, 141,757.03 and 57,401.08

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Solution

The fourth proportional to 102,722.99, 141,757.03 and 57,401.08 is: 79,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,722.99 : 141,757.03 = 57,401.08 : x
  2. Step 2: Convert to fraction form
    102,722.99/141,757.03 = 57,401.08/x
  3. Step 3: Cross multiply
    102,722.99x = 141,757.03 × 57,401.08
  4. Step 4: Simplify right side
    102,722.99x = 8,137,006,476.09
  5. Step 5: Solve for x
    x = 8,137,006,476.09/102,722.99
  6. Step 6: Final answer
    x = 79,213.10

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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.