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Finding the Fourth Proportional to 136,308.39, 188,114.70 and 82,598.70

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Solution

The fourth proportional to 136,308.39, 188,114.70 and 82,598.70 is: 113,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,308.39 : 188,114.70 = 82,598.70 : x
  2. Step 2: Convert to fraction form
    136,308.39/188,114.70 = 82,598.70/x
  3. Step 3: Cross multiply
    136,308.39x = 188,114.70 × 82,598.70
  4. Step 4: Simplify right side
    136,308.39x = 15,538,029,670.89
  5. Step 5: Solve for x
    x = 15,538,029,670.89/136,308.39
  6. Step 6: Final answer
    x = 113,991.73

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1.5x scale

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.