Home / 200,635.79-276,875.62-109,990.10

Finding the Fourth Proportional to 200,635.79, 276,875.62 and 109,990.10

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Solution

The fourth proportional to 200,635.79, 276,875.62 and 109,990.10 is: 151,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,635.79 : 276,875.62 = 109,990.10 : x
  2. Step 2: Convert to fraction form
    200,635.79/276,875.62 = 109,990.10/x
  3. Step 3: Cross multiply
    200,635.79x = 276,875.62 × 109,990.10
  4. Step 4: Simplify right side
    200,635.79x = 30,453,577,548.58
  5. Step 5: Solve for x
    x = 30,453,577,548.58/200,635.79
  6. Step 6: Final answer
    x = 151,785.37

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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.