Home / 129,708.70-194,455.05-54,886.30

Finding the Fourth Proportional to 129,708.70, 194,455.05 and 54,886.30

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Solution

The fourth proportional to 129,708.70, 194,455.05 and 54,886.30 is: 82,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,708.70 : 194,455.05 = 54,886.30 : x
  2. Step 2: Convert to fraction form
    129,708.70/194,455.05 = 54,886.30/x
  3. Step 3: Cross multiply
    129,708.70x = 194,455.05 × 54,886.30
  4. Step 4: Simplify right side
    129,708.70x = 10,672,918,210.82
  5. Step 5: Solve for x
    x = 10,672,918,210.82/129,708.70
  6. Step 6: Final answer
    x = 82,283.75

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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.