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Finding the Fourth Proportional to 129,484.88, 194,162.27 and 75,466.96

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Solution

The fourth proportional to 129,484.88, 194,162.27 and 75,466.96 is: 113,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,484.88 : 194,162.27 = 75,466.96 : x
  2. Step 2: Convert to fraction form
    129,484.88/194,162.27 = 75,466.96/x
  3. Step 3: Cross multiply
    129,484.88x = 194,162.27 × 75,466.96
  4. Step 4: Simplify right side
    129,484.88x = 14,652,835,400.86
  5. Step 5: Solve for x
    x = 14,652,835,400.86/129,484.88
  6. Step 6: Final answer
    x = 113,162.52

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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.