Home / 123,739.40-170,496.60-83,383.07

Finding the Fourth Proportional to 123,739.40, 170,496.60 and 83,383.07

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Solution

The fourth proportional to 123,739.40, 170,496.60 and 83,383.07 is: 114,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,739.40 : 170,496.60 = 83,383.07 : x
  2. Step 2: Convert to fraction form
    123,739.40/170,496.60 = 83,383.07/x
  3. Step 3: Cross multiply
    123,739.40x = 170,496.60 × 83,383.07
  4. Step 4: Simplify right side
    123,739.40x = 14,216,529,726.44
  5. Step 5: Solve for x
    x = 14,216,529,726.44/123,739.40
  6. Step 6: Final answer
    x = 114,890.89

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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.