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Finding the Fourth Proportional to 172,569.60, 258,891.36 and 97,725.12

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Solution

The fourth proportional to 172,569.60, 258,891.36 and 97,725.12 is: 146,608.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,569.60 : 258,891.36 = 97,725.12 : x
  2. Step 2: Convert to fraction form
    172,569.60/258,891.36 = 97,725.12/x
  3. Step 3: Cross multiply
    172,569.60x = 258,891.36 × 97,725.12
  4. Step 4: Simplify right side
    172,569.60x = 25,300,189,222.96
  5. Step 5: Solve for x
    x = 25,300,189,222.96/172,569.60
  6. Step 6: Final answer
    x = 146,608.61

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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.