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Finding the Fourth Proportional to 133,247.25, 183,863.52 and 85,565.25

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Solution

The fourth proportional to 133,247.25, 183,863.52 and 85,565.25 is: 118,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,247.25 : 183,863.52 = 85,565.25 : x
  2. Step 2: Convert to fraction form
    133,247.25/183,863.52 = 85,565.25/x
  3. Step 3: Cross multiply
    133,247.25x = 183,863.52 × 85,565.25
  4. Step 4: Simplify right side
    133,247.25x = 15,732,328,054.68
  5. Step 5: Solve for x
    x = 15,732,328,054.68/133,247.25
  6. Step 6: Final answer
    x = 118,068.69

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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.