Home / 215,995.95-298,068.66-120,500.19

Finding the Fourth Proportional to 215,995.95, 298,068.66 and 120,500.19

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Solution

The fourth proportional to 215,995.95, 298,068.66 and 120,500.19 is: 166,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,995.95 : 298,068.66 = 120,500.19 : x
  2. Step 2: Convert to fraction form
    215,995.95/298,068.66 = 120,500.19/x
  3. Step 3: Cross multiply
    215,995.95x = 298,068.66 × 120,500.19
  4. Step 4: Simplify right side
    215,995.95x = 35,917,330,163.05
  5. Step 5: Solve for x
    x = 35,917,330,163.05/215,995.95
  6. Step 6: Final answer
    x = 166,287.05

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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.