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Finding the Fourth Proportional to 147,340.54, 203,272.50 and 83,669.68

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Solution

The fourth proportional to 147,340.54, 203,272.50 and 83,669.68 is: 115,431.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,340.54 : 203,272.50 = 83,669.68 : x
  2. Step 2: Convert to fraction form
    147,340.54/203,272.50 = 83,669.68/x
  3. Step 3: Cross multiply
    147,340.54x = 203,272.50 × 83,669.68
  4. Step 4: Simplify right side
    147,340.54x = 17,007,745,027.80
  5. Step 5: Solve for x
    x = 17,007,745,027.80/147,340.54
  6. Step 6: Final answer
    x = 115,431.54

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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.