Home / 155,778.58-214,974.54-84,158.57

Finding the Fourth Proportional to 155,778.58, 214,974.54 and 84,158.57

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Solution

The fourth proportional to 155,778.58, 214,974.54 and 84,158.57 is: 116,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,778.58 : 214,974.54 = 84,158.57 : x
  2. Step 2: Convert to fraction form
    155,778.58/214,974.54 = 84,158.57/x
  3. Step 3: Cross multiply
    155,778.58x = 214,974.54 × 84,158.57
  4. Step 4: Simplify right side
    155,778.58x = 18,091,949,872.81
  5. Step 5: Solve for x
    x = 18,091,949,872.81/155,778.58
  6. Step 6: Final answer
    x = 116,138.88

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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.