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Finding the Fourth Proportional to 132,809.60, 199,214.40 and 97,380.20

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Solution

The fourth proportional to 132,809.60, 199,214.40 and 97,380.20 is: 146,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,809.60 : 199,214.40 = 97,380.20 : x
  2. Step 2: Convert to fraction form
    132,809.60/199,214.40 = 97,380.20/x
  3. Step 3: Cross multiply
    132,809.60x = 199,214.40 × 97,380.20
  4. Step 4: Simplify right side
    132,809.60x = 19,399,538,114.88
  5. Step 5: Solve for x
    x = 19,399,538,114.88/132,809.60
  6. Step 6: Final answer
    x = 146,070.30

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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.