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Finding the Fourth Proportional to 134,530.80, 201,407.40 and 82,042.80

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Solution

The fourth proportional to 134,530.80, 201,407.40 and 82,042.80 is: 122,827.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,530.80 : 201,407.40 = 82,042.80 : x
  2. Step 2: Convert to fraction form
    134,530.80/201,407.40 = 82,042.80/x
  3. Step 3: Cross multiply
    134,530.80x = 201,407.40 × 82,042.80
  4. Step 4: Simplify right side
    134,530.80x = 16,524,027,036.72
  5. Step 5: Solve for x
    x = 16,524,027,036.72/134,530.80
  6. Step 6: Final answer
    x = 122,827.09

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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.