Home / 112,286.41-154,981.31-74,052.87

Finding the Fourth Proportional to 112,286.41, 154,981.31 and 74,052.87

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Solution

The fourth proportional to 112,286.41, 154,981.31 and 74,052.87 is: 102,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,286.41 : 154,981.31 = 74,052.87 : x
  2. Step 2: Convert to fraction form
    112,286.41/154,981.31 = 74,052.87/x
  3. Step 3: Cross multiply
    112,286.41x = 154,981.31 × 74,052.87
  4. Step 4: Simplify right side
    112,286.41x = 11,476,810,801.86
  5. Step 5: Solve for x
    x = 11,476,810,801.86/112,286.41
  6. Step 6: Final answer
    x = 102,210.15

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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.