Home / 129,758.64-179,066.96-73,170.02

Finding the Fourth Proportional to 129,758.64, 179,066.96 and 73,170.02

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Solution

The fourth proportional to 129,758.64, 179,066.96 and 73,170.02 is: 100,974.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,758.64 : 179,066.96 = 73,170.02 : x
  2. Step 2: Convert to fraction form
    129,758.64/179,066.96 = 73,170.02/x
  3. Step 3: Cross multiply
    129,758.64x = 179,066.96 × 73,170.02
  4. Step 4: Simplify right side
    129,758.64x = 13,102,331,783.35
  5. Step 5: Solve for x
    x = 13,102,331,783.35/129,758.64
  6. Step 6: Final answer
    x = 100,974.64

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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.