Home / 129,779.70-194,778.90-58,811.55

Finding the Fourth Proportional to 129,779.70, 194,778.90 and 58,811.55

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Solution

The fourth proportional to 129,779.70, 194,778.90 and 58,811.55 is: 88,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,779.70 : 194,778.90 = 58,811.55 : x
  2. Step 2: Convert to fraction form
    129,779.70/194,778.90 = 58,811.55/x
  3. Step 3: Cross multiply
    129,779.70x = 194,778.90 × 58,811.55
  4. Step 4: Simplify right side
    129,779.70x = 11,455,249,016.30
  5. Step 5: Solve for x
    x = 11,455,249,016.30/129,779.70
  6. Step 6: Final answer
    x = 88,266.88

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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.