Home / 120,121.45-180,290.86-64,008.97

Finding the Fourth Proportional to 120,121.45, 180,290.86 and 64,008.97

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Solution

The fourth proportional to 120,121.45, 180,290.86 and 64,008.97 is: 96,071.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,121.45 : 180,290.86 = 64,008.97 : x
  2. Step 2: Convert to fraction form
    120,121.45/180,290.86 = 64,008.97/x
  3. Step 3: Cross multiply
    120,121.45x = 180,290.86 × 64,008.97
  4. Step 4: Simplify right side
    120,121.45x = 11,540,231,638.26
  5. Step 5: Solve for x
    x = 11,540,231,638.26/120,121.45
  6. Step 6: Final answer
    x = 96,071.37

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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.