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Finding the Fourth Proportional to 147,393.38, 203,383.84 and 83,718.88

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Solution

The fourth proportional to 147,393.38, 203,383.84 and 83,718.88 is: 115,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,393.38 : 203,383.84 = 83,718.88 : x
  2. Step 2: Convert to fraction form
    147,393.38/203,383.84 = 83,718.88/x
  3. Step 3: Cross multiply
    147,393.38x = 203,383.84 × 83,718.88
  4. Step 4: Simplify right side
    147,393.38x = 17,027,067,294.90
  5. Step 5: Solve for x
    x = 17,027,067,294.90/147,393.38
  6. Step 6: Final answer
    x = 115,521.25

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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.