Home / 136,069.64-187,806.56-75,661.48

Finding the Fourth Proportional to 136,069.64, 187,806.56 and 75,661.48

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Solution

The fourth proportional to 136,069.64, 187,806.56 and 75,661.48 is: 104,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,069.64 : 187,806.56 = 75,661.48 : x
  2. Step 2: Convert to fraction form
    136,069.64/187,806.56 = 75,661.48/x
  3. Step 3: Cross multiply
    136,069.64x = 187,806.56 × 75,661.48
  4. Step 4: Simplify right side
    136,069.64x = 14,209,722,283.31
  5. Step 5: Solve for x
    x = 14,209,722,283.31/136,069.64
  6. Step 6: Final answer
    x = 104,429.78

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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.