Home / 151,906.03-209,623.94-87,370.39

Finding the Fourth Proportional to 151,906.03, 209,623.94 and 87,370.39

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Solution

The fourth proportional to 151,906.03, 209,623.94 and 87,370.39 is: 120,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,906.03 : 209,623.94 = 87,370.39 : x
  2. Step 2: Convert to fraction form
    151,906.03/209,623.94 = 87,370.39/x
  3. Step 3: Cross multiply
    151,906.03x = 209,623.94 × 87,370.39
  4. Step 4: Simplify right side
    151,906.03x = 18,314,925,216.31
  5. Step 5: Solve for x
    x = 18,314,925,216.31/151,906.03
  6. Step 6: Final answer
    x = 120,567.47

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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.