Home / 131,647.70-197,471.55-72,665.30

Finding the Fourth Proportional to 131,647.70, 197,471.55 and 72,665.30

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Solution

The fourth proportional to 131,647.70, 197,471.55 and 72,665.30 is: 108,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,647.70 : 197,471.55 = 72,665.30 : x
  2. Step 2: Convert to fraction form
    131,647.70/197,471.55 = 72,665.30/x
  3. Step 3: Cross multiply
    131,647.70x = 197,471.55 × 72,665.30
  4. Step 4: Simplify right side
    131,647.70x = 14,349,329,422.22
  5. Step 5: Solve for x
    x = 14,349,329,422.22/131,647.70
  6. Step 6: Final answer
    x = 108,997.95

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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.