Home / 134,896.31-186,179.42-128,917.43

Finding the Fourth Proportional to 134,896.31, 186,179.42 and 128,917.43

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Solution

The fourth proportional to 134,896.31, 186,179.42 and 128,917.43 is: 177,927.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,896.31 : 186,179.42 = 128,917.43 : x
  2. Step 2: Convert to fraction form
    134,896.31/186,179.42 = 128,917.43/x
  3. Step 3: Cross multiply
    134,896.31x = 186,179.42 × 128,917.43
  4. Step 4: Simplify right side
    134,896.31x = 24,001,771,951.42
  5. Step 5: Solve for x
    x = 24,001,771,951.42/134,896.31
  6. Step 6: Final answer
    x = 177,927.57

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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.