Home / 136,561.02-188,161.83-91,771.26

Finding the Fourth Proportional to 136,561.02, 188,161.83 and 91,771.26

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Solution

The fourth proportional to 136,561.02, 188,161.83 and 91,771.26 is: 126,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,561.02 : 188,161.83 = 91,771.26 : x
  2. Step 2: Convert to fraction form
    136,561.02/188,161.83 = 91,771.26/x
  3. Step 3: Cross multiply
    136,561.02x = 188,161.83 × 91,771.26
  4. Step 4: Simplify right side
    136,561.02x = 17,267,848,223.01
  5. Step 5: Solve for x
    x = 17,267,848,223.01/136,561.02
  6. Step 6: Final answer
    x = 126,447.86

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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.