Home / 129,577.13-194,365.70-74,134.25

Finding the Fourth Proportional to 129,577.13, 194,365.70 and 74,134.25

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Solution

The fourth proportional to 129,577.13, 194,365.70 and 74,134.25 is: 111,201.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,577.13 : 194,365.70 = 74,134.25 : x
  2. Step 2: Convert to fraction form
    129,577.13/194,365.70 = 74,134.25/x
  3. Step 3: Cross multiply
    129,577.13x = 194,365.70 × 74,134.25
  4. Step 4: Simplify right side
    129,577.13x = 14,409,155,395.23
  5. Step 5: Solve for x
    x = 14,409,155,395.23/129,577.13
  6. Step 6: Final answer
    x = 111,201.38

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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.