Home / 101,982.20-152,920.77-45,774.12

Finding the Fourth Proportional to 101,982.20, 152,920.77 and 45,774.12

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Solution

The fourth proportional to 101,982.20, 152,920.77 and 45,774.12 is: 68,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,982.20 : 152,920.77 = 45,774.12 : x
  2. Step 2: Convert to fraction form
    101,982.20/152,920.77 = 45,774.12/x
  3. Step 3: Cross multiply
    101,982.20x = 152,920.77 × 45,774.12
  4. Step 4: Simplify right side
    101,982.20x = 6,999,813,676.47
  5. Step 5: Solve for x
    x = 6,999,813,676.47/101,982.20
  6. Step 6: Final answer
    x = 68,637.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.