Home / 123,015.24-169,792.70-80,101.85

Finding the Fourth Proportional to 123,015.24, 169,792.70 and 80,101.85

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Solution

The fourth proportional to 123,015.24, 169,792.70 and 80,101.85 is: 110,561.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,015.24 : 169,792.70 = 80,101.85 : x
  2. Step 2: Convert to fraction form
    123,015.24/169,792.70 = 80,101.85/x
  3. Step 3: Cross multiply
    123,015.24x = 169,792.70 × 80,101.85
  4. Step 4: Simplify right side
    123,015.24x = 13,600,708,537.53
  5. Step 5: Solve for x
    x = 13,600,708,537.53/123,015.24
  6. Step 6: Final answer
    x = 110,561.17

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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.