Home / 131,446.20-197,198.10-42,684.60

Finding the Fourth Proportional to 131,446.20, 197,198.10 and 42,684.60

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Solution

The fourth proportional to 131,446.20, 197,198.10 and 42,684.60 is: 64,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,446.20 : 197,198.10 = 42,684.60 : x
  2. Step 2: Convert to fraction form
    131,446.20/197,198.10 = 42,684.60/x
  3. Step 3: Cross multiply
    131,446.20x = 197,198.10 × 42,684.60
  4. Step 4: Simplify right side
    131,446.20x = 8,417,322,019.26
  5. Step 5: Solve for x
    x = 8,417,322,019.26/131,446.20
  6. Step 6: Final answer
    x = 64,036.25

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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.