Home / 135,396.16-186,833.72-74,964.59

Finding the Fourth Proportional to 135,396.16, 186,833.72 and 74,964.59

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Solution

The fourth proportional to 135,396.16, 186,833.72 and 74,964.59 is: 103,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,396.16 : 186,833.72 = 74,964.59 : x
  2. Step 2: Convert to fraction form
    135,396.16/186,833.72 = 74,964.59/x
  3. Step 3: Cross multiply
    135,396.16x = 186,833.72 × 74,964.59
  4. Step 4: Simplify right side
    135,396.16x = 14,005,913,217.97
  5. Step 5: Solve for x
    x = 14,005,913,217.97/135,396.16
  6. Step 6: Final answer
    x = 103,443.95

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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.