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Finding the Fourth Proportional to 128,099.94, 192,159.62 and 34,604.88

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Solution

The fourth proportional to 128,099.94, 192,159.62 and 34,604.88 is: 51,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,099.94 : 192,159.62 = 34,604.88 : x
  2. Step 2: Convert to fraction form
    128,099.94/192,159.62 = 34,604.88/x
  3. Step 3: Cross multiply
    128,099.94x = 192,159.62 × 34,604.88
  4. Step 4: Simplify right side
    128,099.94x = 6,649,660,590.95
  5. Step 5: Solve for x
    x = 6,649,660,590.95/128,099.94
  6. Step 6: Final answer
    x = 51,909.94

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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.