Home / 150,969.28-208,284.40-90,559.52

Finding the Fourth Proportional to 150,969.28, 208,284.40 and 90,559.52

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Solution

The fourth proportional to 150,969.28, 208,284.40 and 90,559.52 is: 124,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,969.28 : 208,284.40 = 90,559.52 : x
  2. Step 2: Convert to fraction form
    150,969.28/208,284.40 = 90,559.52/x
  3. Step 3: Cross multiply
    150,969.28x = 208,284.40 × 90,559.52
  4. Step 4: Simplify right side
    150,969.28x = 18,862,135,287.49
  5. Step 5: Solve for x
    x = 18,862,135,287.49/150,969.28
  6. Step 6: Final answer
    x = 124,940.22

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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.