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Finding the Fourth Proportional to 129,797.86, 179,202.14 and 99,525.03

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Solution

The fourth proportional to 129,797.86, 179,202.14 and 99,525.03 is: 137,406.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,797.86 : 179,202.14 = 99,525.03 : x
  2. Step 2: Convert to fraction form
    129,797.86/179,202.14 = 99,525.03/x
  3. Step 3: Cross multiply
    129,797.86x = 179,202.14 × 99,525.03
  4. Step 4: Simplify right side
    129,797.86x = 17,835,098,359.56
  5. Step 5: Solve for x
    x = 17,835,098,359.56/129,797.86
  6. Step 6: Final answer
    x = 137,406.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.