Home / 147,790.36-203,946.42-80,722.36

Finding the Fourth Proportional to 147,790.36, 203,946.42 and 80,722.36

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Solution

The fourth proportional to 147,790.36, 203,946.42 and 80,722.36 is: 111,394.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,790.36 : 203,946.42 = 80,722.36 : x
  2. Step 2: Convert to fraction form
    147,790.36/203,946.42 = 80,722.36/x
  3. Step 3: Cross multiply
    147,790.36x = 203,946.42 × 80,722.36
  4. Step 4: Simplify right side
    147,790.36x = 16,463,036,335.95
  5. Step 5: Solve for x
    x = 16,463,036,335.95/147,790.36
  6. Step 6: Final answer
    x = 111,394.52

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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.