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Finding the Fourth Proportional to 132,959.40, 199,568.70 and 66,474.60

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Solution

The fourth proportional to 132,959.40, 199,568.70 and 66,474.60 is: 99,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,959.40 : 199,568.70 = 66,474.60 : x
  2. Step 2: Convert to fraction form
    132,959.40/199,568.70 = 66,474.60/x
  3. Step 3: Cross multiply
    132,959.40x = 199,568.70 × 66,474.60
  4. Step 4: Simplify right side
    132,959.40x = 13,266,249,505.02
  5. Step 5: Solve for x
    x = 13,266,249,505.02/132,959.40
  6. Step 6: Final answer
    x = 99,776.70

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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.