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Finding the Fourth Proportional to 133,329.70, 200,124.15 and 80,841.70

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Solution

The fourth proportional to 133,329.70, 200,124.15 and 80,841.70 is: 121,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,329.70 : 200,124.15 = 80,841.70 : x
  2. Step 2: Convert to fraction form
    133,329.70/200,124.15 = 80,841.70/x
  3. Step 3: Cross multiply
    133,329.70x = 200,124.15 × 80,841.70
  4. Step 4: Simplify right side
    133,329.70x = 16,178,376,497.06
  5. Step 5: Solve for x
    x = 16,178,376,497.06/133,329.70
  6. Step 6: Final answer
    x = 121,341.13

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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.