Home / 215,693.28-297,662.85-120,199.14

Finding the Fourth Proportional to 215,693.28, 297,662.85 and 120,199.14

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Solution

The fourth proportional to 215,693.28, 297,662.85 and 120,199.14 is: 165,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,693.28 : 297,662.85 = 120,199.14 : x
  2. Step 2: Convert to fraction form
    215,693.28/297,662.85 = 120,199.14/x
  3. Step 3: Cross multiply
    215,693.28x = 297,662.85 × 120,199.14
  4. Step 4: Simplify right side
    215,693.28x = 35,778,818,579.95
  5. Step 5: Solve for x
    x = 35,778,818,579.95/215,693.28
  6. Step 6: Final answer
    x = 165,878.23

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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.