Home / 172,051.17-258,093.23-66,878.34

Finding the Fourth Proportional to 172,051.17, 258,093.23 and 66,878.34

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Solution

The fourth proportional to 172,051.17, 258,093.23 and 66,878.34 is: 100,323.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,051.17 : 258,093.23 = 66,878.34 : x
  2. Step 2: Convert to fraction form
    172,051.17/258,093.23 = 66,878.34/x
  3. Step 3: Cross multiply
    172,051.17x = 258,093.23 × 66,878.34
  4. Step 4: Simplify right side
    172,051.17x = 17,260,846,453.25
  5. Step 5: Solve for x
    x = 17,260,846,453.25/172,051.17
  6. Step 6: Final answer
    x = 100,323.91

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1.5x scale

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.