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Finding the Fourth Proportional to 136,597.32, 188,504.31 and 80,008.70

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Solution

The fourth proportional to 136,597.32, 188,504.31 and 80,008.70 is: 110,412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,597.32 : 188,504.31 = 80,008.70 : x
  2. Step 2: Convert to fraction form
    136,597.32/188,504.31 = 80,008.70/x
  3. Step 3: Cross multiply
    136,597.32x = 188,504.31 × 80,008.70
  4. Step 4: Simplify right side
    136,597.32x = 15,081,984,433.96
  5. Step 5: Solve for x
    x = 15,081,984,433.96/136,597.32
  6. Step 6: Final answer
    x = 110,412.00

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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.