Home / 306,087.32-459,130.37-81,447.75

Finding the Fourth Proportional to 306,087.32, 459,130.37 and 81,447.75

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Solution

The fourth proportional to 306,087.32, 459,130.37 and 81,447.75 is: 122,171.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,087.32 : 459,130.37 = 81,447.75 : x
  2. Step 2: Convert to fraction form
    306,087.32/459,130.37 = 81,447.75/x
  3. Step 3: Cross multiply
    306,087.32x = 459,130.37 × 81,447.75
  4. Step 4: Simplify right side
    306,087.32x = 37,395,135,185.93
  5. Step 5: Solve for x
    x = 37,395,135,185.93/306,087.32
  6. Step 6: Final answer
    x = 122,171.46

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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.