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Finding the Fourth Proportional to 131,365.80, 197,000.10 and 42,622.20

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Solution

The fourth proportional to 131,365.80, 197,000.10 and 42,622.20 is: 63,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,365.80 : 197,000.10 = 42,622.20 : x
  2. Step 2: Convert to fraction form
    131,365.80/197,000.10 = 42,622.20/x
  3. Step 3: Cross multiply
    131,365.80x = 197,000.10 × 42,622.20
  4. Step 4: Simplify right side
    131,365.80x = 8,396,577,662.22
  5. Step 5: Solve for x
    x = 8,396,577,662.22/131,365.80
  6. Step 6: Final answer
    x = 63,917.53

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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.