Home / 116,981.92-161,436.16-66,684.16

Finding the Fourth Proportional to 116,981.92, 161,436.16 and 66,684.16

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Solution

The fourth proportional to 116,981.92, 161,436.16 and 66,684.16 is: 92,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,981.92 : 161,436.16 = 66,684.16 : x
  2. Step 2: Convert to fraction form
    116,981.92/161,436.16 = 66,684.16/x
  3. Step 3: Cross multiply
    116,981.92x = 161,436.16 × 66,684.16
  4. Step 4: Simplify right side
    116,981.92x = 10,765,234,723.23
  5. Step 5: Solve for x
    x = 10,765,234,723.23/116,981.92
  6. Step 6: Final answer
    x = 92,024.77

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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.