Home / 172,137.28-258,106.60-66,833.24

Finding the Fourth Proportional to 172,137.28, 258,106.60 and 66,833.24

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Solution

The fourth proportional to 172,137.28, 258,106.60 and 66,833.24 is: 100,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,137.28 : 258,106.60 = 66,833.24 : x
  2. Step 2: Convert to fraction form
    172,137.28/258,106.60 = 66,833.24/x
  3. Step 3: Cross multiply
    172,137.28x = 258,106.60 × 66,833.24
  4. Step 4: Simplify right side
    172,137.28x = 17,250,100,343.38
  5. Step 5: Solve for x
    x = 17,250,100,343.38/172,137.28
  6. Step 6: Final answer
    x = 100,211.30

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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.