Home / 129,759.94-179,052.69-76,032.64

Finding the Fourth Proportional to 129,759.94, 179,052.69 and 76,032.64

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Solution

The fourth proportional to 129,759.94, 179,052.69 and 76,032.64 is: 104,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,759.94 : 179,052.69 = 76,032.64 : x
  2. Step 2: Convert to fraction form
    129,759.94/179,052.69 = 76,032.64/x
  3. Step 3: Cross multiply
    129,759.94x = 179,052.69 × 76,032.64
  4. Step 4: Simplify right side
    129,759.94x = 13,613,848,719.80
  5. Step 5: Solve for x
    x = 13,613,848,719.80/129,759.94
  6. Step 6: Final answer
    x = 104,915.65

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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.