Home / 149,342.36-206,096.70-85,691.48

Finding the Fourth Proportional to 149,342.36, 206,096.70 and 85,691.48

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Solution

The fourth proportional to 149,342.36, 206,096.70 and 85,691.48 is: 118,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,342.36 : 206,096.70 = 85,691.48 : x
  2. Step 2: Convert to fraction form
    149,342.36/206,096.70 = 85,691.48/x
  3. Step 3: Cross multiply
    149,342.36x = 206,096.70 × 85,691.48
  4. Step 4: Simplify right side
    149,342.36x = 17,660,731,246.12
  5. Step 5: Solve for x
    x = 17,660,731,246.12/149,342.36
  6. Step 6: Final answer
    x = 118,256.68

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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.