Home / 100,361.06-138,488.27-57,933.26

Finding the Fourth Proportional to 100,361.06, 138,488.27 and 57,933.26

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Solution

The fourth proportional to 100,361.06, 138,488.27 and 57,933.26 is: 79,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,361.06 : 138,488.27 = 57,933.26 : x
  2. Step 2: Convert to fraction form
    100,361.06/138,488.27 = 57,933.26/x
  3. Step 3: Cross multiply
    100,361.06x = 138,488.27 × 57,933.26
  4. Step 4: Simplify right side
    100,361.06x = 8,023,076,490.08
  5. Step 5: Solve for x
    x = 8,023,076,490.08/100,361.06
  6. Step 6: Final answer
    x = 79,942.13

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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.