Home / 120,212.17-180,316.13-35,972.57

Finding the Fourth Proportional to 120,212.17, 180,316.13 and 35,972.57

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Solution

The fourth proportional to 120,212.17, 180,316.13 and 35,972.57 is: 53,958.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,212.17 : 180,316.13 = 35,972.57 : x
  2. Step 2: Convert to fraction form
    120,212.17/180,316.13 = 35,972.57/x
  3. Step 3: Cross multiply
    120,212.17x = 180,316.13 × 35,972.57
  4. Step 4: Simplify right side
    120,212.17x = 6,486,434,879.48
  5. Step 5: Solve for x
    x = 6,486,434,879.48/120,212.17
  6. Step 6: Final answer
    x = 53,958.22

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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.