Home / 136,935.22-188,938.22-79,540.45

Finding the Fourth Proportional to 136,935.22, 188,938.22 and 79,540.45

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Solution

The fourth proportional to 136,935.22, 188,938.22 and 79,540.45 is: 109,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,935.22 : 188,938.22 = 79,540.45 : x
  2. Step 2: Convert to fraction form
    136,935.22/188,938.22 = 79,540.45/x
  3. Step 3: Cross multiply
    136,935.22x = 188,938.22 × 79,540.45
  4. Step 4: Simplify right side
    136,935.22x = 15,028,231,041.00
  5. Step 5: Solve for x
    x = 15,028,231,041.00/136,935.22
  6. Step 6: Final answer
    x = 109,747.01

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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.