Home / 136,641.44-188,559.36-100,818.56

Finding the Fourth Proportional to 136,641.44, 188,559.36 and 100,818.56

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Solution

The fourth proportional to 136,641.44, 188,559.36 and 100,818.56 is: 139,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,641.44 : 188,559.36 = 100,818.56 : x
  2. Step 2: Convert to fraction form
    136,641.44/188,559.36 = 100,818.56/x
  3. Step 3: Cross multiply
    136,641.44x = 188,559.36 × 100,818.56
  4. Step 4: Simplify right side
    136,641.44x = 19,010,283,149.72
  5. Step 5: Solve for x
    x = 19,010,283,149.72/136,641.44
  6. Step 6: Final answer
    x = 139,125.31

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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.