Home / 129,997.80-179,480.34-106,181.64

Finding the Fourth Proportional to 129,997.80, 179,480.34 and 106,181.64

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Solution

The fourth proportional to 129,997.80, 179,480.34 and 106,181.64 is: 146,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,997.80 : 179,480.34 = 106,181.64 : x
  2. Step 2: Convert to fraction form
    129,997.80/179,480.34 = 106,181.64/x
  3. Step 3: Cross multiply
    129,997.80x = 179,480.34 × 106,181.64
  4. Step 4: Simplify right side
    129,997.80x = 19,057,516,848.96
  5. Step 5: Solve for x
    x = 19,057,516,848.96/129,997.80
  6. Step 6: Final answer
    x = 146,598.76

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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.