Home / 112,648.21-155,443.99-67,317.19

Finding the Fourth Proportional to 112,648.21, 155,443.99 and 67,317.19

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Solution

The fourth proportional to 112,648.21, 155,443.99 and 67,317.19 is: 92,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,648.21 : 155,443.99 = 67,317.19 : x
  2. Step 2: Convert to fraction form
    112,648.21/155,443.99 = 67,317.19/x
  3. Step 3: Cross multiply
    112,648.21x = 155,443.99 × 67,317.19
  4. Step 4: Simplify right side
    112,648.21x = 10,464,052,609.19
  5. Step 5: Solve for x
    x = 10,464,052,609.19/112,648.21
  6. Step 6: Final answer
    x = 92,891.42

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1.5x scale

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.