Home / 136,848.56-188,840.24-76,414.48

Finding the Fourth Proportional to 136,848.56, 188,840.24 and 76,414.48

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Solution

The fourth proportional to 136,848.56, 188,840.24 and 76,414.48 is: 105,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,848.56 : 188,840.24 = 76,414.48 : x
  2. Step 2: Convert to fraction form
    136,848.56/188,840.24 = 76,414.48/x
  3. Step 3: Cross multiply
    136,848.56x = 188,840.24 × 76,414.48
  4. Step 4: Simplify right side
    136,848.56x = 14,430,128,742.68
  5. Step 5: Solve for x
    x = 14,430,128,742.68/136,848.56
  6. Step 6: Final answer
    x = 105,445.97

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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.