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Finding the Fourth Proportional to 188,439.53, 282,624.44 and 85,832.66

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Solution

The fourth proportional to 188,439.53, 282,624.44 and 85,832.66 is: 128,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,439.53 : 282,624.44 = 85,832.66 : x
  2. Step 2: Convert to fraction form
    188,439.53/282,624.44 = 85,832.66/x
  3. Step 3: Cross multiply
    188,439.53x = 282,624.44 × 85,832.66
  4. Step 4: Simplify right side
    188,439.53x = 24,258,405,623.92
  5. Step 5: Solve for x
    x = 24,258,405,623.92/188,439.53
  6. Step 6: Final answer
    x = 128,733.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.