Home / 102,882.21-141,982.95-57,557.49

Finding the Fourth Proportional to 102,882.21, 141,982.95 and 57,557.49

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Solution

The fourth proportional to 102,882.21, 141,982.95 and 57,557.49 is: 79,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,882.21 : 141,982.95 = 57,557.49 : x
  2. Step 2: Convert to fraction form
    102,882.21/141,982.95 = 57,557.49/x
  3. Step 3: Cross multiply
    102,882.21x = 141,982.95 × 57,557.49
  4. Step 4: Simplify right side
    102,882.21x = 8,172,181,908.20
  5. Step 5: Solve for x
    x = 8,172,181,908.20/102,882.21
  6. Step 6: Final answer
    x = 79,432.41

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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.