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Finding the Fourth Proportional to 200,088.41, 300,133.13 and 81,759.76

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Solution

The fourth proportional to 200,088.41, 300,133.13 and 81,759.76 is: 122,639.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,088.41 : 300,133.13 = 81,759.76 : x
  2. Step 2: Convert to fraction form
    200,088.41/300,133.13 = 81,759.76/x
  3. Step 3: Cross multiply
    200,088.41x = 300,133.13 × 81,759.76
  4. Step 4: Simplify right side
    200,088.41x = 24,538,812,676.85
  5. Step 5: Solve for x
    x = 24,538,812,676.85/200,088.41
  6. Step 6: Final answer
    x = 122,639.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.