Home / 172,817.28-238,554.72-135,103.68

Finding the Fourth Proportional to 172,817.28, 238,554.72 and 135,103.68

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Solution

The fourth proportional to 172,817.28, 238,554.72 and 135,103.68 is: 186,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,817.28 : 238,554.72 = 135,103.68 : x
  2. Step 2: Convert to fraction form
    172,817.28/238,554.72 = 135,103.68/x
  3. Step 3: Cross multiply
    172,817.28x = 238,554.72 × 135,103.68
  4. Step 4: Simplify right side
    172,817.28x = 32,229,620,553.37
  5. Step 5: Solve for x
    x = 32,229,620,553.37/172,817.28
  6. Step 6: Final answer
    x = 186,495.36

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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.