Home / 120,110.45-165,752.48-66,395.44

Finding the Fourth Proportional to 120,110.45, 165,752.48 and 66,395.44

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Solution

The fourth proportional to 120,110.45, 165,752.48 and 66,395.44 is: 91,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,110.45 : 165,752.48 = 66,395.44 : x
  2. Step 2: Convert to fraction form
    120,110.45/165,752.48 = 66,395.44/x
  3. Step 3: Cross multiply
    120,110.45x = 165,752.48 × 66,395.44
  4. Step 4: Simplify right side
    120,110.45x = 11,005,208,592.30
  5. Step 5: Solve for x
    x = 11,005,208,592.30/120,110.45
  6. Step 6: Final answer
    x = 91,625.74

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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.