Home / 200,145.12-276,199.20-109,499.44

Finding the Fourth Proportional to 200,145.12, 276,199.20 and 109,499.44

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Solution

The fourth proportional to 200,145.12, 276,199.20 and 109,499.44 is: 151,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,145.12 : 276,199.20 = 109,499.44 : x
  2. Step 2: Convert to fraction form
    200,145.12/276,199.20 = 109,499.44/x
  3. Step 3: Cross multiply
    200,145.12x = 276,199.20 × 109,499.44
  4. Step 4: Simplify right side
    200,145.12x = 30,243,657,728.45
  5. Step 5: Solve for x
    x = 30,243,657,728.45/200,145.12
  6. Step 6: Final answer
    x = 151,108.64

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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.