Home / 103,625.21-155,334-43,668.16

Finding the Fourth Proportional to 103,625.21, 155,334 and 43,668.16

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Solution

The fourth proportional to 103,625.21, 155,334 and 43,668.16 is: 65,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.21 : 155,334 = 43,668.16 : x
  2. Step 2: Convert to fraction form
    103,625.21/155,334 = 43,668.16/x
  3. Step 3: Cross multiply
    103,625.21x = 155,334 × 43,668.16
  4. Step 4: Simplify right side
    103,625.21x = 6,783,149,965.44
  5. Step 5: Solve for x
    x = 6,783,149,965.44/103,625.21
  6. Step 6: Final answer
    x = 65,458.49

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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.