Home / 120,024.72-165,633.48-66,313.44

Finding the Fourth Proportional to 120,024.72, 165,633.48 and 66,313.44

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Solution

The fourth proportional to 120,024.72, 165,633.48 and 66,313.44 is: 91,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,024.72 : 165,633.48 = 66,313.44 : x
  2. Step 2: Convert to fraction form
    120,024.72/165,633.48 = 66,313.44/x
  3. Step 3: Cross multiply
    120,024.72x = 165,633.48 × 66,313.44
  4. Step 4: Simplify right side
    120,024.72x = 10,983,725,837.97
  5. Step 5: Solve for x
    x = 10,983,725,837.97/120,024.72
  6. Step 6: Final answer
    x = 91,512.20

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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.