Home / 134,104.34-185,101.24-76,775.78

Finding the Fourth Proportional to 134,104.34, 185,101.24 and 76,775.78

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Solution

The fourth proportional to 134,104.34, 185,101.24 and 76,775.78 is: 105,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,104.34 : 185,101.24 = 76,775.78 : x
  2. Step 2: Convert to fraction form
    134,104.34/185,101.24 = 76,775.78/x
  3. Step 3: Cross multiply
    134,104.34x = 185,101.24 × 76,775.78
  4. Step 4: Simplify right side
    134,104.34x = 14,211,292,079.97
  5. Step 5: Solve for x
    x = 14,211,292,079.97/134,104.34
  6. Step 6: Final answer
    x = 105,971.90

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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.