Home / 138,772.80-191,506.23-75,110.49

Finding the Fourth Proportional to 138,772.80, 191,506.23 and 75,110.49

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Solution

The fourth proportional to 138,772.80, 191,506.23 and 75,110.49 is: 103,652.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,772.80 : 191,506.23 = 75,110.49 : x
  2. Step 2: Convert to fraction form
    138,772.80/191,506.23 = 75,110.49/x
  3. Step 3: Cross multiply
    138,772.80x = 191,506.23 × 75,110.49
  4. Step 4: Simplify right side
    138,772.80x = 14,384,126,773.35
  5. Step 5: Solve for x
    x = 14,384,126,773.35/138,772.80
  6. Step 6: Final answer
    x = 103,652.35

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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.