Home / 136,744.79-188,717.27-76,327.22

Finding the Fourth Proportional to 136,744.79, 188,717.27 and 76,327.22

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Solution

The fourth proportional to 136,744.79, 188,717.27 and 76,327.22 is: 105,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,744.79 : 188,717.27 = 76,327.22 : x
  2. Step 2: Convert to fraction form
    136,744.79/188,717.27 = 76,327.22/x
  3. Step 3: Cross multiply
    136,744.79x = 188,717.27 × 76,327.22
  4. Step 4: Simplify right side
    136,744.79x = 14,404,263,259.87
  5. Step 5: Solve for x
    x = 14,404,263,259.87/136,744.79
  6. Step 6: Final answer
    x = 105,336.84

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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.