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Finding the Fourth Proportional to 172,962.09, 238,689.09 and 96,478.65

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Solution

The fourth proportional to 172,962.09, 238,689.09 and 96,478.65 is: 133,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,962.09 : 238,689.09 = 96,478.65 : x
  2. Step 2: Convert to fraction form
    172,962.09/238,689.09 = 96,478.65/x
  3. Step 3: Cross multiply
    172,962.09x = 238,689.09 × 96,478.65
  4. Step 4: Simplify right side
    172,962.09x = 23,028,401,172.93
  5. Step 5: Solve for x
    x = 23,028,401,172.93/172,962.09
  6. Step 6: Final answer
    x = 133,141.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.