Home / 146,151.22-219,234.72-40,978.40

Finding the Fourth Proportional to 146,151.22, 219,234.72 and 40,978.40

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Solution

The fourth proportional to 146,151.22, 219,234.72 and 40,978.40 is: 61,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,151.22 : 219,234.72 = 40,978.40 : x
  2. Step 2: Convert to fraction form
    146,151.22/219,234.72 = 40,978.40/x
  3. Step 3: Cross multiply
    146,151.22x = 219,234.72 × 40,978.40
  4. Step 4: Simplify right side
    146,151.22x = 8,983,888,050.05
  5. Step 5: Solve for x
    x = 8,983,888,050.05/146,151.22
  6. Step 6: Final answer
    x = 61,469.81

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1.5x scale

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.