Home / 120,218.06-180,336.47-40,256.33

Finding the Fourth Proportional to 120,218.06, 180,336.47 and 40,256.33

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Solution

The fourth proportional to 120,218.06, 180,336.47 and 40,256.33 is: 60,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,218.06 : 180,336.47 = 40,256.33 : x
  2. Step 2: Convert to fraction form
    120,218.06/180,336.47 = 40,256.33/x
  3. Step 3: Cross multiply
    120,218.06x = 180,336.47 × 40,256.33
  4. Step 4: Simplify right side
    120,218.06x = 7,259,683,344.39
  5. Step 5: Solve for x
    x = 7,259,683,344.39/120,218.06
  6. Step 6: Final answer
    x = 60,387.63

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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.