Home / 123,845.26-170,977.32-81,526.82

Finding the Fourth Proportional to 123,845.26, 170,977.32 and 81,526.82

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Solution

The fourth proportional to 123,845.26, 170,977.32 and 81,526.82 is: 112,553.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,845.26 : 170,977.32 = 81,526.82 : x
  2. Step 2: Convert to fraction form
    123,845.26/170,977.32 = 81,526.82/x
  3. Step 3: Cross multiply
    123,845.26x = 170,977.32 × 81,526.82
  4. Step 4: Simplify right side
    123,845.26x = 13,939,237,191.72
  5. Step 5: Solve for x
    x = 13,939,237,191.72/123,845.26
  6. Step 6: Final answer
    x = 112,553.66

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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.