Home / 134,604.78-185,754.21-74,175.40

Finding the Fourth Proportional to 134,604.78, 185,754.21 and 74,175.40

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Solution

The fourth proportional to 134,604.78, 185,754.21 and 74,175.40 is: 102,361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,604.78 : 185,754.21 = 74,175.40 : x
  2. Step 2: Convert to fraction form
    134,604.78/185,754.21 = 74,175.40/x
  3. Step 3: Cross multiply
    134,604.78x = 185,754.21 × 74,175.40
  4. Step 4: Simplify right side
    134,604.78x = 13,778,392,457.56
  5. Step 5: Solve for x
    x = 13,778,392,457.56/134,604.78
  6. Step 6: Final answer
    x = 102,361.84

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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.