Home / 168,910.56-253,372.32-75,417.12

Finding the Fourth Proportional to 168,910.56, 253,372.32 and 75,417.12

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Solution

The fourth proportional to 168,910.56, 253,372.32 and 75,417.12 is: 113,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,910.56 : 253,372.32 = 75,417.12 : x
  2. Step 2: Convert to fraction form
    168,910.56/253,372.32 = 75,417.12/x
  3. Step 3: Cross multiply
    168,910.56x = 253,372.32 × 75,417.12
  4. Step 4: Simplify right side
    168,910.56x = 19,108,610,662.12
  5. Step 5: Solve for x
    x = 19,108,610,662.12/168,910.56
  6. Step 6: Final answer
    x = 113,128.57

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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.