Home / 128,609.82-177,090.44-114,060.60

Finding the Fourth Proportional to 128,609.82, 177,090.44 and 114,060.60

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Solution

The fourth proportional to 128,609.82, 177,090.44 and 114,060.60 is: 157,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,609.82 : 177,090.44 = 114,060.60 : x
  2. Step 2: Convert to fraction form
    128,609.82/177,090.44 = 114,060.60/x
  3. Step 3: Cross multiply
    128,609.82x = 177,090.44 × 114,060.60
  4. Step 4: Simplify right side
    128,609.82x = 20,199,041,270.36
  5. Step 5: Solve for x
    x = 20,199,041,270.36/128,609.82
  6. Step 6: Final answer
    x = 157,056.76

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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.