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Finding the Fourth Proportional to 129,797.60, 179,089.42 and 89,498.48

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Solution

The fourth proportional to 129,797.60, 179,089.42 and 89,498.48 is: 123,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,797.60 : 179,089.42 = 89,498.48 : x
  2. Step 2: Convert to fraction form
    129,797.60/179,089.42 = 89,498.48/x
  3. Step 3: Cross multiply
    129,797.60x = 179,089.42 × 89,498.48
  4. Step 4: Simplify right side
    129,797.60x = 16,028,230,874.08
  5. Step 5: Solve for x
    x = 16,028,230,874.08/129,797.60
  6. Step 6: Final answer
    x = 123,486.34

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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.