Home / 138,982.14-191,795.49-75,319.92

Finding the Fourth Proportional to 138,982.14, 191,795.49 and 75,319.92

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Solution

The fourth proportional to 138,982.14, 191,795.49 and 75,319.92 is: 103,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,982.14 : 191,795.49 = 75,319.92 : x
  2. Step 2: Convert to fraction form
    138,982.14/191,795.49 = 75,319.92/x
  3. Step 3: Cross multiply
    138,982.14x = 191,795.49 × 75,319.92
  4. Step 4: Simplify right side
    138,982.14x = 14,446,020,963.16
  5. Step 5: Solve for x
    x = 14,446,020,963.16/138,982.14
  6. Step 6: Final answer
    x = 103,941.56

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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.