Home / 129,886.12-194,836.74-36,399.16

Finding the Fourth Proportional to 129,886.12, 194,836.74 and 36,399.16

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Solution

The fourth proportional to 129,886.12, 194,836.74 and 36,399.16 is: 54,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,886.12 : 194,836.74 = 36,399.16 : x
  2. Step 2: Convert to fraction form
    129,886.12/194,836.74 = 36,399.16/x
  3. Step 3: Cross multiply
    129,886.12x = 194,836.74 × 36,399.16
  4. Step 4: Simplify right side
    129,886.12x = 7,091,893,673.14
  5. Step 5: Solve for x
    x = 7,091,893,673.14/129,886.12
  6. Step 6: Final answer
    x = 54,600.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.