Home / 147,243.70-203,193.39-86,816.89

Finding the Fourth Proportional to 147,243.70, 203,193.39 and 86,816.89

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Solution

The fourth proportional to 147,243.70, 203,193.39 and 86,816.89 is: 119,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,243.70 : 203,193.39 = 86,816.89 : x
  2. Step 2: Convert to fraction form
    147,243.70/203,193.39 = 86,816.89/x
  3. Step 3: Cross multiply
    147,243.70x = 203,193.39 × 86,816.89
  4. Step 4: Simplify right side
    147,243.70x = 17,640,618,188.36
  5. Step 5: Solve for x
    x = 17,640,618,188.36/147,243.70
  6. Step 6: Final answer
    x = 119,805.59

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1.5x scale

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.