Home / 122,608.94-169,220.39-102,158.55

Finding the Fourth Proportional to 122,608.94, 169,220.39 and 102,158.55

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Solution

The fourth proportional to 122,608.94, 169,220.39 and 102,158.55 is: 140,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,608.94 : 169,220.39 = 102,158.55 : x
  2. Step 2: Convert to fraction form
    122,608.94/169,220.39 = 102,158.55/x
  3. Step 3: Cross multiply
    122,608.94x = 169,220.39 × 102,158.55
  4. Step 4: Simplify right side
    122,608.94x = 17,287,309,162.04
  5. Step 5: Solve for x
    x = 17,287,309,162.04/122,608.94
  6. Step 6: Final answer
    x = 140,995.51

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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.