Home / 135,393.60-186,849.01-74,964.24

Finding the Fourth Proportional to 135,393.60, 186,849.01 and 74,964.24

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Solution

The fourth proportional to 135,393.60, 186,849.01 and 74,964.24 is: 103,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,393.60 : 186,849.01 = 74,964.24 : x
  2. Step 2: Convert to fraction form
    135,393.60/186,849.01 = 74,964.24/x
  3. Step 3: Cross multiply
    135,393.60x = 186,849.01 × 74,964.24
  4. Step 4: Simplify right side
    135,393.60x = 14,006,993,701.43
  5. Step 5: Solve for x
    x = 14,006,993,701.43/135,393.60
  6. Step 6: Final answer
    x = 103,453.88

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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.