Home / 138,854.04-191,619.27-75,192.09

Finding the Fourth Proportional to 138,854.04, 191,619.27 and 75,192.09

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Solution

The fourth proportional to 138,854.04, 191,619.27 and 75,192.09 is: 103,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,854.04 : 191,619.27 = 75,192.09 : x
  2. Step 2: Convert to fraction form
    138,854.04/191,619.27 = 75,192.09/x
  3. Step 3: Cross multiply
    138,854.04x = 191,619.27 × 75,192.09
  4. Step 4: Simplify right side
    138,854.04x = 14,408,253,198.50
  5. Step 5: Solve for x
    x = 14,408,253,198.50/138,854.04
  6. Step 6: Final answer
    x = 103,765.46

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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.