Home / 172,181.43-258,660.95-102,106.71

Finding the Fourth Proportional to 172,181.43, 258,660.95 and 102,106.71

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Solution

The fourth proportional to 172,181.43, 258,660.95 and 102,106.71 is: 153,390.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,181.43 : 258,660.95 = 102,106.71 : x
  2. Step 2: Convert to fraction form
    172,181.43/258,660.95 = 102,106.71/x
  3. Step 3: Cross multiply
    172,181.43x = 258,660.95 × 102,106.71
  4. Step 4: Simplify right side
    172,181.43x = 26,411,018,099.44
  5. Step 5: Solve for x
    x = 26,411,018,099.44/172,181.43
  6. Step 6: Final answer
    x = 153,390.63

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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.