Home / 146,409.46-202,043.63-81,877.97

Finding the Fourth Proportional to 146,409.46, 202,043.63 and 81,877.97

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Solution

The fourth proportional to 146,409.46, 202,043.63 and 81,877.97 is: 112,990.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,409.46 : 202,043.63 = 81,877.97 : x
  2. Step 2: Convert to fraction form
    146,409.46/202,043.63 = 81,877.97/x
  3. Step 3: Cross multiply
    146,409.46x = 202,043.63 × 81,877.97
  4. Step 4: Simplify right side
    146,409.46x = 16,542,922,985.64
  5. Step 5: Solve for x
    x = 16,542,922,985.64/146,409.46
  6. Step 6: Final answer
    x = 112,990.81

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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.