Home / 131,447.40-197,219.70-52,618.20

Finding the Fourth Proportional to 131,447.40, 197,219.70 and 52,618.20

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Solution

The fourth proportional to 131,447.40, 197,219.70 and 52,618.20 is: 78,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,447.40 : 197,219.70 = 52,618.20 : x
  2. Step 2: Convert to fraction form
    131,447.40/197,219.70 = 52,618.20/x
  3. Step 3: Cross multiply
    131,447.40x = 197,219.70 × 52,618.20
  4. Step 4: Simplify right side
    131,447.40x = 10,377,345,618.54
  5. Step 5: Solve for x
    x = 10,377,345,618.54/131,447.40
  6. Step 6: Final answer
    x = 78,946.75

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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.