Home / 138,994.29-191,812.43-75,332.07

Finding the Fourth Proportional to 138,994.29, 191,812.43 and 75,332.07

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Solution

The fourth proportional to 138,994.29, 191,812.43 and 75,332.07 is: 103,958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,994.29 : 191,812.43 = 75,332.07 : x
  2. Step 2: Convert to fraction form
    138,994.29/191,812.43 = 75,332.07/x
  3. Step 3: Cross multiply
    138,994.29x = 191,812.43 × 75,332.07
  4. Step 4: Simplify right side
    138,994.29x = 14,449,627,026.97
  5. Step 5: Solve for x
    x = 14,449,627,026.97/138,994.29
  6. Step 6: Final answer
    x = 103,958.42

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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.