Home / 122,087.51-183,129.55-74,067.56

Finding the Fourth Proportional to 122,087.51, 183,129.55 and 74,067.56

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Solution

The fourth proportional to 122,087.51, 183,129.55 and 74,067.56 is: 111,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,087.51 : 183,129.55 = 74,067.56 : x
  2. Step 2: Convert to fraction form
    122,087.51/183,129.55 = 74,067.56/x
  3. Step 3: Cross multiply
    122,087.51x = 183,129.55 × 74,067.56
  4. Step 4: Simplify right side
    122,087.51x = 13,563,958,796.07
  5. Step 5: Solve for x
    x = 13,563,958,796.07/122,087.51
  6. Step 6: Final answer
    x = 111,100.30

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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.