Home / 150,741.28-208,012.56-83,668

Finding the Fourth Proportional to 150,741.28, 208,012.56 and 83,668

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Solution

The fourth proportional to 150,741.28, 208,012.56 and 83,668 is: 115,456.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,741.28 : 208,012.56 = 83,668 : x
  2. Step 2: Convert to fraction form
    150,741.28/208,012.56 = 83,668/x
  3. Step 3: Cross multiply
    150,741.28x = 208,012.56 × 83,668
  4. Step 4: Simplify right side
    150,741.28x = 17,403,994,870.08
  5. Step 5: Solve for x
    x = 17,403,994,870.08/150,741.28
  6. Step 6: Final answer
    x = 115,456.06

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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.