Home / 111,921.37-154,446.83-61,617.13

Finding the Fourth Proportional to 111,921.37, 154,446.83 and 61,617.13

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Solution

The fourth proportional to 111,921.37, 154,446.83 and 61,617.13 is: 85,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,921.37 : 154,446.83 = 61,617.13 : x
  2. Step 2: Convert to fraction form
    111,921.37/154,446.83 = 61,617.13/x
  3. Step 3: Cross multiply
    111,921.37x = 154,446.83 × 61,617.13
  4. Step 4: Simplify right side
    111,921.37x = 9,516,570,094.11
  5. Step 5: Solve for x
    x = 9,516,570,094.11/111,921.37
  6. Step 6: Final answer
    x = 85,029.07

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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.