Home / 145,736.37-201,112.20-82,072.80

Finding the Fourth Proportional to 145,736.37, 201,112.20 and 82,072.80

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Solution

The fourth proportional to 145,736.37, 201,112.20 and 82,072.80 is: 113,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,736.37 : 201,112.20 = 82,072.80 : x
  2. Step 2: Convert to fraction form
    145,736.37/201,112.20 = 82,072.80/x
  3. Step 3: Cross multiply
    145,736.37x = 201,112.20 × 82,072.80
  4. Step 4: Simplify right side
    145,736.37x = 16,505,841,368.16
  5. Step 5: Solve for x
    x = 16,505,841,368.16/145,736.37
  6. Step 6: Final answer
    x = 113,258.22

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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.