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Finding the Fourth Proportional to 136,588.51, 188,522.32 and 88,758.82

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Solution

The fourth proportional to 136,588.51, 188,522.32 and 88,758.82 is: 122,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,588.51 : 188,522.32 = 88,758.82 : x
  2. Step 2: Convert to fraction form
    136,588.51/188,522.32 = 88,758.82/x
  3. Step 3: Cross multiply
    136,588.51x = 188,522.32 × 88,758.82
  4. Step 4: Simplify right side
    136,588.51x = 16,733,017,724.25
  5. Step 5: Solve for x
    x = 16,733,017,724.25/136,588.51
  6. Step 6: Final answer
    x = 122,506.78

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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.