Home / 151,907.03-209,625.31-87,371.39

Finding the Fourth Proportional to 151,907.03, 209,625.31 and 87,371.39

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Solution

The fourth proportional to 151,907.03, 209,625.31 and 87,371.39 is: 120,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,907.03 : 209,625.31 = 87,371.39 : x
  2. Step 2: Convert to fraction form
    151,907.03/209,625.31 = 87,371.39/x
  3. Step 3: Cross multiply
    151,907.03x = 209,625.31 × 87,371.39
  4. Step 4: Simplify right side
    151,907.03x = 18,315,254,713.88
  5. Step 5: Solve for x
    x = 18,315,254,713.88/151,907.03
  6. Step 6: Final answer
    x = 120,568.84

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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.