Home / 101,929.20-152,820.90-45,723.30

Finding the Fourth Proportional to 101,929.20, 152,820.90 and 45,723.30

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Solution

The fourth proportional to 101,929.20, 152,820.90 and 45,723.30 is: 68,552.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,929.20 : 152,820.90 = 45,723.30 : x
  2. Step 2: Convert to fraction form
    101,929.20/152,820.90 = 45,723.30/x
  3. Step 3: Cross multiply
    101,929.20x = 152,820.90 × 45,723.30
  4. Step 4: Simplify right side
    101,929.20x = 6,987,475,856.97
  5. Step 5: Solve for x
    x = 6,987,475,856.97/101,929.20
  6. Step 6: Final answer
    x = 68,552.25

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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.