Home / 129,378.96-194,068.38-58,218.42

Finding the Fourth Proportional to 129,378.96, 194,068.38 and 58,218.42

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Solution

The fourth proportional to 129,378.96, 194,068.38 and 58,218.42 is: 87,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,378.96 : 194,068.38 = 58,218.42 : x
  2. Step 2: Convert to fraction form
    129,378.96/194,068.38 = 58,218.42/x
  3. Step 3: Cross multiply
    129,378.96x = 194,068.38 × 58,218.42
  4. Step 4: Simplify right side
    129,378.96x = 11,298,354,455.56
  5. Step 5: Solve for x
    x = 11,298,354,455.56/129,378.96
  6. Step 6: Final answer
    x = 87,327.60

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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.