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Finding the Fourth Proportional to 131,805.60, 197,708.40 and 60,728.10

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Solution

The fourth proportional to 131,805.60, 197,708.40 and 60,728.10 is: 91,092.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,805.60 : 197,708.40 = 60,728.10 : x
  2. Step 2: Convert to fraction form
    131,805.60/197,708.40 = 60,728.10/x
  3. Step 3: Cross multiply
    131,805.60x = 197,708.40 × 60,728.10
  4. Step 4: Simplify right side
    131,805.60x = 12,006,455,486.04
  5. Step 5: Solve for x
    x = 12,006,455,486.04/131,805.60
  6. Step 6: Final answer
    x = 91,092.15

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1.5x scale

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.