Home / 135,044.46-186,345.15-74,611.38

Finding the Fourth Proportional to 135,044.46, 186,345.15 and 74,611.38

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Solution

The fourth proportional to 135,044.46, 186,345.15 and 74,611.38 is: 102,954.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,044.46 : 186,345.15 = 74,611.38 : x
  2. Step 2: Convert to fraction form
    135,044.46/186,345.15 = 74,611.38/x
  3. Step 3: Cross multiply
    135,044.46x = 186,345.15 × 74,611.38
  4. Step 4: Simplify right side
    135,044.46x = 13,903,468,797.81
  5. Step 5: Solve for x
    x = 13,903,468,797.81/135,044.46
  6. Step 6: Final answer
    x = 102,954.75

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1.5x scale

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.