Home / 147,579.70-203,659.04-83,917.50

Finding the Fourth Proportional to 147,579.70, 203,659.04 and 83,917.50

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Solution

The fourth proportional to 147,579.70, 203,659.04 and 83,917.50 is: 115,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,579.70 : 203,659.04 = 83,917.50 : x
  2. Step 2: Convert to fraction form
    147,579.70/203,659.04 = 83,917.50/x
  3. Step 3: Cross multiply
    147,579.70x = 203,659.04 × 83,917.50
  4. Step 4: Simplify right side
    147,579.70x = 17,090,557,489.20
  5. Step 5: Solve for x
    x = 17,090,557,489.20/147,579.70
  6. Step 6: Final answer
    x = 115,805.61

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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.