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Finding the Fourth Proportional to 131,787, 197,658.26 and 36,995.44

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Solution

The fourth proportional to 131,787, 197,658.26 and 36,995.44 is: 55,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,787 : 197,658.26 = 36,995.44 : x
  2. Step 2: Convert to fraction form
    131,787/197,658.26 = 36,995.44/x
  3. Step 3: Cross multiply
    131,787x = 197,658.26 × 36,995.44
  4. Step 4: Simplify right side
    131,787x = 7,312,454,298.33
  5. Step 5: Solve for x
    x = 7,312,454,298.33/131,787
  6. Step 6: Final answer
    x = 55,486.92

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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.