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Finding the Fourth Proportional to 147,573.70, 203,650.75 and 83,911.49

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Solution

The fourth proportional to 147,573.70, 203,650.75 and 83,911.49 is: 115,797.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,573.70 : 203,650.75 = 83,911.49 : x
  2. Step 2: Convert to fraction form
    147,573.70/203,650.75 = 83,911.49/x
  3. Step 3: Cross multiply
    147,573.70x = 203,650.75 × 83,911.49
  4. Step 4: Simplify right side
    147,573.70x = 17,088,637,722.44
  5. Step 5: Solve for x
    x = 17,088,637,722.44/147,573.70
  6. Step 6: Final answer
    x = 115,797.31

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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.