Home / 145,776.31-218,728.25-51,074.65

Finding the Fourth Proportional to 145,776.31, 218,728.25 and 51,074.65

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Solution

The fourth proportional to 145,776.31, 218,728.25 and 51,074.65 is: 76,634.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,776.31 : 218,728.25 = 51,074.65 : x
  2. Step 2: Convert to fraction form
    145,776.31/218,728.25 = 51,074.65/x
  3. Step 3: Cross multiply
    145,776.31x = 218,728.25 × 51,074.65
  4. Step 4: Simplify right side
    145,776.31x = 11,171,469,023.43
  5. Step 5: Solve for x
    x = 11,171,469,023.43/145,776.31
  6. Step 6: Final answer
    x = 76,634.33

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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.