Home / 151,908.03-209,626.69-87,372.39

Finding the Fourth Proportional to 151,908.03, 209,626.69 and 87,372.39

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Solution

The fourth proportional to 151,908.03, 209,626.69 and 87,372.39 is: 120,570.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,908.03 : 209,626.69 = 87,372.39 : x
  2. Step 2: Convert to fraction form
    151,908.03/209,626.69 = 87,372.39/x
  3. Step 3: Cross multiply
    151,908.03x = 209,626.69 × 87,372.39
  4. Step 4: Simplify right side
    151,908.03x = 18,315,584,913.09
  5. Step 5: Solve for x
    x = 18,315,584,913.09/151,908.03
  6. Step 6: Final answer
    x = 120,570.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.