Home / 281,748.11-422,646.77-71,386.05

Finding the Fourth Proportional to 281,748.11, 422,646.77 and 71,386.05

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Solution

The fourth proportional to 281,748.11, 422,646.77 and 71,386.05 is: 107,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,748.11 : 422,646.77 = 71,386.05 : x
  2. Step 2: Convert to fraction form
    281,748.11/422,646.77 = 71,386.05/x
  3. Step 3: Cross multiply
    281,748.11x = 422,646.77 × 71,386.05
  4. Step 4: Simplify right side
    281,748.11x = 30,171,083,455.56
  5. Step 5: Solve for x
    x = 30,171,083,455.56/281,748.11
  6. Step 6: Final answer
    x = 107,085.31

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1.5x scale

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.