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Finding the Fourth Proportional to 134,772.80, 202,159.20 and 82,284.80

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Solution

The fourth proportional to 134,772.80, 202,159.20 and 82,284.80 is: 123,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,772.80 : 202,159.20 = 82,284.80 : x
  2. Step 2: Convert to fraction form
    134,772.80/202,159.20 = 82,284.80/x
  3. Step 3: Cross multiply
    134,772.80x = 202,159.20 × 82,284.80
  4. Step 4: Simplify right side
    134,772.80x = 16,634,629,340.16
  5. Step 5: Solve for x
    x = 16,634,629,340.16/134,772.80
  6. Step 6: Final answer
    x = 123,427.20

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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.