Home / 122,022-168,381.09-74,270.07

Finding the Fourth Proportional to 122,022, 168,381.09 and 74,270.07

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Solution

The fourth proportional to 122,022, 168,381.09 and 74,270.07 is: 102,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,022 : 168,381.09 = 74,270.07 : x
  2. Step 2: Convert to fraction form
    122,022/168,381.09 = 74,270.07/x
  3. Step 3: Cross multiply
    122,022x = 168,381.09 × 74,270.07
  4. Step 4: Simplify right side
    122,022x = 12,505,675,340.98
  5. Step 5: Solve for x
    x = 12,505,675,340.98/122,022
  6. Step 6: Final answer
    x = 102,487.05

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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.