Home / 122,321.49-168,647.39-79,224.93

Finding the Fourth Proportional to 122,321.49, 168,647.39 and 79,224.93

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Solution

The fourth proportional to 122,321.49, 168,647.39 and 79,224.93 is: 109,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,321.49 : 168,647.39 = 79,224.93 : x
  2. Step 2: Convert to fraction form
    122,321.49/168,647.39 = 79,224.93/x
  3. Step 3: Cross multiply
    122,321.49x = 168,647.39 × 79,224.93
  4. Step 4: Simplify right side
    122,321.49x = 13,361,077,271.31
  5. Step 5: Solve for x
    x = 13,361,077,271.31/122,321.49
  6. Step 6: Final answer
    x = 109,229.19

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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.