Home / 152,022.56-228,131.75-81,950.72

Finding the Fourth Proportional to 152,022.56, 228,131.75 and 81,950.72

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Solution

The fourth proportional to 152,022.56, 228,131.75 and 81,950.72 is: 122,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,022.56 : 228,131.75 = 81,950.72 : x
  2. Step 2: Convert to fraction form
    152,022.56/228,131.75 = 81,950.72/x
  3. Step 3: Cross multiply
    152,022.56x = 228,131.75 × 81,950.72
  4. Step 4: Simplify right side
    152,022.56x = 18,695,560,231.58
  5. Step 5: Solve for x
    x = 18,695,560,231.58/152,022.56
  6. Step 6: Final answer
    x = 122,978.86

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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.