Home / 134,908.83-186,164.64-74,469.78

Finding the Fourth Proportional to 134,908.83, 186,164.64 and 74,469.78

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Solution

The fourth proportional to 134,908.83, 186,164.64 and 74,469.78 is: 102,763.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,908.83 : 186,164.64 = 74,469.78 : x
  2. Step 2: Convert to fraction form
    134,908.83/186,164.64 = 74,469.78/x
  3. Step 3: Cross multiply
    134,908.83x = 186,164.64 × 74,469.78
  4. Step 4: Simplify right side
    134,908.83x = 13,863,639,784.58
  5. Step 5: Solve for x
    x = 13,863,639,784.58/134,908.83
  6. Step 6: Final answer
    x = 102,763.03

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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.