Home / 148,383.21-204,778.88-83,830.06

Finding the Fourth Proportional to 148,383.21, 204,778.88 and 83,830.06

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Solution

The fourth proportional to 148,383.21, 204,778.88 and 83,830.06 is: 115,691.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,383.21 : 204,778.88 = 83,830.06 : x
  2. Step 2: Convert to fraction form
    148,383.21/204,778.88 = 83,830.06/x
  3. Step 3: Cross multiply
    148,383.21x = 204,778.88 × 83,830.06
  4. Step 4: Simplify right side
    148,383.21x = 17,166,625,797.13
  5. Step 5: Solve for x
    x = 17,166,625,797.13/148,383.21
  6. Step 6: Final answer
    x = 115,691.16

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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.