Home / 129,997.48-179,395.14-73,405.48

Finding the Fourth Proportional to 129,997.48, 179,395.14 and 73,405.48

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Solution

The fourth proportional to 129,997.48, 179,395.14 and 73,405.48 is: 101,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,997.48 : 179,395.14 = 73,405.48 : x
  2. Step 2: Convert to fraction form
    129,997.48/179,395.14 = 73,405.48/x
  3. Step 3: Cross multiply
    129,997.48x = 179,395.14 × 73,405.48
  4. Step 4: Simplify right side
    129,997.48x = 13,168,586,361.37
  5. Step 5: Solve for x
    x = 13,168,586,361.37/129,997.48
  6. Step 6: Final answer
    x = 101,298.78

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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.