Home / 138,456.24-191,069.37-74,793.84

Finding the Fourth Proportional to 138,456.24, 191,069.37 and 74,793.84

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Solution

The fourth proportional to 138,456.24, 191,069.37 and 74,793.84 is: 103,215.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,456.24 : 191,069.37 = 74,793.84 : x
  2. Step 2: Convert to fraction form
    138,456.24/191,069.37 = 74,793.84/x
  3. Step 3: Cross multiply
    138,456.24x = 191,069.37 × 74,793.84
  4. Step 4: Simplify right side
    138,456.24x = 14,290,811,888.68
  5. Step 5: Solve for x
    x = 14,290,811,888.68/138,456.24
  6. Step 6: Final answer
    x = 103,215.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.