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Finding the Fourth Proportional to 132,415.60, 198,570.60 and 43,644.40

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Solution

The fourth proportional to 132,415.60, 198,570.60 and 43,644.40 is: 65,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,415.60 : 198,570.60 = 43,644.40 : x
  2. Step 2: Convert to fraction form
    132,415.60/198,570.60 = 43,644.40/x
  3. Step 3: Cross multiply
    132,415.60x = 198,570.60 × 43,644.40
  4. Step 4: Simplify right side
    132,415.60x = 8,666,494,694.64
  5. Step 5: Solve for x
    x = 8,666,494,694.64/132,415.60
  6. Step 6: Final answer
    x = 65,449.20

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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.