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Finding the Fourth Proportional to 130,896.60, 196,490.70 and 71,847.60

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Solution

The fourth proportional to 130,896.60, 196,490.70 and 71,847.60 is: 107,851.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,896.60 : 196,490.70 = 71,847.60 : x
  2. Step 2: Convert to fraction form
    130,896.60/196,490.70 = 71,847.60/x
  3. Step 3: Cross multiply
    130,896.60x = 196,490.70 × 71,847.60
  4. Step 4: Simplify right side
    130,896.60x = 14,117,385,217.32
  5. Step 5: Solve for x
    x = 14,117,385,217.32/130,896.60
  6. Step 6: Final answer
    x = 107,851.43

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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.