Home / 149,256.45-205,816.05-115,270.47

Finding the Fourth Proportional to 149,256.45, 205,816.05 and 115,270.47

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Solution

The fourth proportional to 149,256.45, 205,816.05 and 115,270.47 is: 158,951.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,256.45 : 205,816.05 = 115,270.47 : x
  2. Step 2: Convert to fraction form
    149,256.45/205,816.05 = 115,270.47/x
  3. Step 3: Cross multiply
    149,256.45x = 205,816.05 × 115,270.47
  4. Step 4: Simplify right side
    149,256.45x = 23,724,512,817.04
  5. Step 5: Solve for x
    x = 23,724,512,817.04/149,256.45
  6. Step 6: Final answer
    x = 158,951.34

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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.