Home / 133,688.32-200,630.49-107,706.76

Finding the Fourth Proportional to 133,688.32, 200,630.49 and 107,706.76

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Solution

The fourth proportional to 133,688.32, 200,630.49 and 107,706.76 is: 161,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,688.32 : 200,630.49 = 107,706.76 : x
  2. Step 2: Convert to fraction form
    133,688.32/200,630.49 = 107,706.76/x
  3. Step 3: Cross multiply
    133,688.32x = 200,630.49 × 107,706.76
  4. Step 4: Simplify right side
    133,688.32x = 21,609,260,035.11
  5. Step 5: Solve for x
    x = 21,609,260,035.11/133,688.32
  6. Step 6: Final answer
    x = 161,639.10

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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.