Home / 129,707.70-194,453.55-54,885.30

Finding the Fourth Proportional to 129,707.70, 194,453.55 and 54,885.30

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Solution

The fourth proportional to 129,707.70, 194,453.55 and 54,885.30 is: 82,282.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,707.70 : 194,453.55 = 54,885.30 : x
  2. Step 2: Convert to fraction form
    129,707.70/194,453.55 = 54,885.30/x
  3. Step 3: Cross multiply
    129,707.70x = 194,453.55 × 54,885.30
  4. Step 4: Simplify right side
    129,707.70x = 10,672,641,427.82
  5. Step 5: Solve for x
    x = 10,672,641,427.82/129,707.70
  6. Step 6: Final answer
    x = 82,282.25

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1.5x scale

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.