Home / 215,919.53-297,969.41-120,423.77

Finding the Fourth Proportional to 215,919.53, 297,969.41 and 120,423.77

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Solution

The fourth proportional to 215,919.53, 297,969.41 and 120,423.77 is: 166,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,919.53 : 297,969.41 = 120,423.77 : x
  2. Step 2: Convert to fraction form
    215,919.53/297,969.41 = 120,423.77/x
  3. Step 3: Cross multiply
    215,919.53x = 297,969.41 × 120,423.77
  4. Step 4: Simplify right side
    215,919.53x = 35,882,599,094.76
  5. Step 5: Solve for x
    x = 35,882,599,094.76/215,919.53
  6. Step 6: Final answer
    x = 166,185.06

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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.