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Finding the Fourth Proportional to 129,476, 193,305.75 and 109,552.34

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Solution

The fourth proportional to 129,476, 193,305.75 and 109,552.34 is: 163,560.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,476 : 193,305.75 = 109,552.34 : x
  2. Step 2: Convert to fraction form
    129,476/193,305.75 = 109,552.34/x
  3. Step 3: Cross multiply
    129,476x = 193,305.75 × 109,552.34
  4. Step 4: Simplify right side
    129,476x = 21,177,097,247.96
  5. Step 5: Solve for x
    x = 21,177,097,247.96/129,476
  6. Step 6: Final answer
    x = 163,560.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.