Home / 123,236.12-169,911.76-102,847.51

Finding the Fourth Proportional to 123,236.12, 169,911.76 and 102,847.51

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Solution

The fourth proportional to 123,236.12, 169,911.76 and 102,847.51 is: 141,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,236.12 : 169,911.76 = 102,847.51 : x
  2. Step 2: Convert to fraction form
    123,236.12/169,911.76 = 102,847.51/x
  3. Step 3: Cross multiply
    123,236.12x = 169,911.76 × 102,847.51
  4. Step 4: Simplify right side
    123,236.12x = 17,475,001,435.72
  5. Step 5: Solve for x
    x = 17,475,001,435.72/123,236.12
  6. Step 6: Final answer
    x = 141,800.97

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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.