Home / 122,119.84-168,607.62-76,249.33

Finding the Fourth Proportional to 122,119.84, 168,607.62 and 76,249.33

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Solution

The fourth proportional to 122,119.84, 168,607.62 and 76,249.33 is: 105,275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,119.84 : 168,607.62 = 76,249.33 : x
  2. Step 2: Convert to fraction form
    122,119.84/168,607.62 = 76,249.33/x
  3. Step 3: Cross multiply
    122,119.84x = 168,607.62 × 76,249.33
  4. Step 4: Simplify right side
    122,119.84x = 12,856,218,057.89
  5. Step 5: Solve for x
    x = 12,856,218,057.89/122,119.84
  6. Step 6: Final answer
    x = 105,275.43

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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.