Home / 172,895.40-259,343.10-102,738.60

Finding the Fourth Proportional to 172,895.40, 259,343.10 and 102,738.60

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Solution

The fourth proportional to 172,895.40, 259,343.10 and 102,738.60 is: 154,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,895.40 : 259,343.10 = 102,738.60 : x
  2. Step 2: Convert to fraction form
    172,895.40/259,343.10 = 102,738.60/x
  3. Step 3: Cross multiply
    172,895.40x = 259,343.10 × 102,738.60
  4. Step 4: Simplify right side
    172,895.40x = 26,644,547,013.66
  5. Step 5: Solve for x
    x = 26,644,547,013.66/172,895.40
  6. Step 6: Final answer
    x = 154,107.90

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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.