Home / 136,871.46-205,137.68-77,527.22

Finding the Fourth Proportional to 136,871.46, 205,137.68 and 77,527.22

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Solution

The fourth proportional to 136,871.46, 205,137.68 and 77,527.22 is: 116,194.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,871.46 : 205,137.68 = 77,527.22 : x
  2. Step 2: Convert to fraction form
    136,871.46/205,137.68 = 77,527.22/x
  3. Step 3: Cross multiply
    136,871.46x = 205,137.68 × 77,527.22
  4. Step 4: Simplify right side
    136,871.46x = 15,903,752,634.33
  5. Step 5: Solve for x
    x = 15,903,752,634.33/136,871.46
  6. Step 6: Final answer
    x = 116,194.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.