Home / 152,642.20-228,998.10-47,471.80

Finding the Fourth Proportional to 152,642.20, 228,998.10 and 47,471.80

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Solution

The fourth proportional to 152,642.20, 228,998.10 and 47,471.80 is: 71,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,642.20 : 228,998.10 = 47,471.80 : x
  2. Step 2: Convert to fraction form
    152,642.20/228,998.10 = 47,471.80/x
  3. Step 3: Cross multiply
    152,642.20x = 228,998.10 × 47,471.80
  4. Step 4: Simplify right side
    152,642.20x = 10,870,952,003.58
  5. Step 5: Solve for x
    x = 10,870,952,003.58/152,642.20
  6. Step 6: Final answer
    x = 71,218.52

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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.