Home / 200,143.86-276,197.40-109,498.14

Finding the Fourth Proportional to 200,143.86, 276,197.40 and 109,498.14

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Solution

The fourth proportional to 200,143.86, 276,197.40 and 109,498.14 is: 151,106.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,143.86 : 276,197.40 = 109,498.14 : x
  2. Step 2: Convert to fraction form
    200,143.86/276,197.40 = 109,498.14/x
  3. Step 3: Cross multiply
    200,143.86x = 276,197.40 × 109,498.14
  4. Step 4: Simplify right side
    200,143.86x = 30,243,101,572.84
  5. Step 5: Solve for x
    x = 30,243,101,572.84/200,143.86
  6. Step 6: Final answer
    x = 151,106.82

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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.