Home / 134,002.30-201,003.45-81,427.90

Finding the Fourth Proportional to 134,002.30, 201,003.45 and 81,427.90

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Solution

The fourth proportional to 134,002.30, 201,003.45 and 81,427.90 is: 122,141.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,002.30 : 201,003.45 = 81,427.90 : x
  2. Step 2: Convert to fraction form
    134,002.30/201,003.45 = 81,427.90/x
  3. Step 3: Cross multiply
    134,002.30x = 201,003.45 × 81,427.90
  4. Step 4: Simplify right side
    134,002.30x = 16,367,288,826.26
  5. Step 5: Solve for x
    x = 16,367,288,826.26/134,002.30
  6. Step 6: Final answer
    x = 122,141.85

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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.