Home / 109,118.21-150,581.68-61,371.56

Finding the Fourth Proportional to 109,118.21, 150,581.68 and 61,371.56

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Solution

The fourth proportional to 109,118.21, 150,581.68 and 61,371.56 is: 84,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,118.21 : 150,581.68 = 61,371.56 : x
  2. Step 2: Convert to fraction form
    109,118.21/150,581.68 = 61,371.56/x
  3. Step 3: Cross multiply
    109,118.21x = 150,581.68 × 61,371.56
  4. Step 4: Simplify right side
    109,118.21x = 9,241,432,294.87
  5. Step 5: Solve for x
    x = 9,241,432,294.87/109,118.21
  6. Step 6: Final answer
    x = 84,691.93

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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.