Home / 281,748.36-422,647.14-71,386.30

Finding the Fourth Proportional to 281,748.36, 422,647.14 and 71,386.30

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Solution

The fourth proportional to 281,748.36, 422,647.14 and 71,386.30 is: 107,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,748.36 : 422,647.14 = 71,386.30 : x
  2. Step 2: Convert to fraction form
    281,748.36/422,647.14 = 71,386.30/x
  3. Step 3: Cross multiply
    281,748.36x = 422,647.14 × 71,386.30
  4. Step 4: Simplify right side
    281,748.36x = 30,171,213,416.95
  5. Step 5: Solve for x
    x = 30,171,213,416.95/281,748.36
  6. Step 6: Final answer
    x = 107,085.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.