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Finding the Fourth Proportional to 129,019.40, 193,464.30 and 58,819.40

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Solution

The fourth proportional to 129,019.40, 193,464.30 and 58,819.40 is: 88,199.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,019.40 : 193,464.30 = 58,819.40 : x
  2. Step 2: Convert to fraction form
    129,019.40/193,464.30 = 58,819.40/x
  3. Step 3: Cross multiply
    129,019.40x = 193,464.30 × 58,819.40
  4. Step 4: Simplify right side
    129,019.40x = 11,379,454,047.42
  5. Step 5: Solve for x
    x = 11,379,454,047.42/129,019.40
  6. Step 6: Final answer
    x = 88,199.56

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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.