Home / 200,142.47-276,198.65-109,496.45

Finding the Fourth Proportional to 200,142.47, 276,198.65 and 109,496.45

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Solution

The fourth proportional to 200,142.47, 276,198.65 and 109,496.45 is: 151,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,142.47 : 276,198.65 = 109,496.45 : x
  2. Step 2: Convert to fraction form
    200,142.47/276,198.65 = 109,496.45/x
  3. Step 3: Cross multiply
    200,142.47x = 276,198.65 × 109,496.45
  4. Step 4: Simplify right side
    200,142.47x = 30,242,771,669.79
  5. Step 5: Solve for x
    x = 30,242,771,669.79/200,142.47
  6. Step 6: Final answer
    x = 151,106.22

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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.