Home / 122,531.78-183,476.79-80,278.94

Finding the Fourth Proportional to 122,531.78, 183,476.79 and 80,278.94

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Solution

The fourth proportional to 122,531.78, 183,476.79 and 80,278.94 is: 120,208.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,531.78 : 183,476.79 = 80,278.94 : x
  2. Step 2: Convert to fraction form
    122,531.78/183,476.79 = 80,278.94/x
  3. Step 3: Cross multiply
    122,531.78x = 183,476.79 × 80,278.94
  4. Step 4: Simplify right side
    122,531.78x = 14,729,322,215.80
  5. Step 5: Solve for x
    x = 14,729,322,215.80/122,531.78
  6. Step 6: Final answer
    x = 120,208.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.