Home / 109,629.66-151,288.87-61,883.42

Finding the Fourth Proportional to 109,629.66, 151,288.87 and 61,883.42

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Solution

The fourth proportional to 109,629.66, 151,288.87 and 61,883.42 is: 85,399.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,629.66 : 151,288.87 = 61,883.42 : x
  2. Step 2: Convert to fraction form
    109,629.66/151,288.87 = 61,883.42/x
  3. Step 3: Cross multiply
    109,629.66x = 151,288.87 × 61,883.42
  4. Step 4: Simplify right side
    109,629.66x = 9,362,272,683.54
  5. Step 5: Solve for x
    x = 9,362,272,683.54/109,629.66
  6. Step 6: Final answer
    x = 85,399.09

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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.