Home / 136,760.47-188,726.97-76,330.02

Finding the Fourth Proportional to 136,760.47, 188,726.97 and 76,330.02

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Solution

The fourth proportional to 136,760.47, 188,726.97 and 76,330.02 is: 105,334.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,760.47 : 188,726.97 = 76,330.02 : x
  2. Step 2: Convert to fraction form
    136,760.47/188,726.97 = 76,330.02/x
  3. Step 3: Cross multiply
    136,760.47x = 188,726.97 × 76,330.02
  4. Step 4: Simplify right side
    136,760.47x = 14,405,532,451.00
  5. Step 5: Solve for x
    x = 14,405,532,451.00/136,760.47
  6. Step 6: Final answer
    x = 105,334.04

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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.