Home / 149,749.03-206,872.27-129,570.88

Finding the Fourth Proportional to 149,749.03, 206,872.27 and 129,570.88

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Solution

The fourth proportional to 149,749.03, 206,872.27 and 129,570.88 is: 178,996.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,749.03 : 206,872.27 = 129,570.88 : x
  2. Step 2: Convert to fraction form
    149,749.03/206,872.27 = 129,570.88/x
  3. Step 3: Cross multiply
    149,749.03x = 206,872.27 × 129,570.88
  4. Step 4: Simplify right side
    149,749.03x = 26,804,622,071.50
  5. Step 5: Solve for x
    x = 26,804,622,071.50/149,749.03
  6. Step 6: Final answer
    x = 178,996.97

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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.