Home / 146,463.06-202,109.48-81,921.12

Finding the Fourth Proportional to 146,463.06, 202,109.48 and 81,921.12

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Solution

The fourth proportional to 146,463.06, 202,109.48 and 81,921.12 is: 113,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,463.06 : 202,109.48 = 81,921.12 : x
  2. Step 2: Convert to fraction form
    146,463.06/202,109.48 = 81,921.12/x
  3. Step 3: Cross multiply
    146,463.06x = 202,109.48 × 81,921.12
  4. Step 4: Simplify right side
    146,463.06x = 16,557,034,964.22
  5. Step 5: Solve for x
    x = 16,557,034,964.22/146,463.06
  6. Step 6: Final answer
    x = 113,045.81

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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.