Home / 180,431.22-248,991.60-99,858.78

Finding the Fourth Proportional to 180,431.22, 248,991.60 and 99,858.78

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Solution

The fourth proportional to 180,431.22, 248,991.60 and 99,858.78 is: 137,803.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,431.22 : 248,991.60 = 99,858.78 : x
  2. Step 2: Convert to fraction form
    180,431.22/248,991.60 = 99,858.78/x
  3. Step 3: Cross multiply
    180,431.22x = 248,991.60 × 99,858.78
  4. Step 4: Simplify right side
    180,431.22x = 24,863,997,406.25
  5. Step 5: Solve for x
    x = 24,863,997,406.25/180,431.22
  6. Step 6: Final answer
    x = 137,803.19

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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.