Home / 116,719.92-161,036.10-68,989.32

Finding the Fourth Proportional to 116,719.92, 161,036.10 and 68,989.32

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Solution

The fourth proportional to 116,719.92, 161,036.10 and 68,989.32 is: 95,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,719.92 : 161,036.10 = 68,989.32 : x
  2. Step 2: Convert to fraction form
    116,719.92/161,036.10 = 68,989.32/x
  3. Step 3: Cross multiply
    116,719.92x = 161,036.10 × 68,989.32
  4. Step 4: Simplify right side
    116,719.92x = 11,109,771,034.45
  5. Step 5: Solve for x
    x = 11,109,771,034.45/116,719.92
  6. Step 6: Final answer
    x = 95,183.16

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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.