Home / 153,512.21-211,862.44-85,540.25

Finding the Fourth Proportional to 153,512.21, 211,862.44 and 85,540.25

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Solution

The fourth proportional to 153,512.21, 211,862.44 and 85,540.25 is: 118,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,512.21 : 211,862.44 = 85,540.25 : x
  2. Step 2: Convert to fraction form
    153,512.21/211,862.44 = 85,540.25/x
  3. Step 3: Cross multiply
    153,512.21x = 211,862.44 × 85,540.25
  4. Step 4: Simplify right side
    153,512.21x = 18,122,766,238.63
  5. Step 5: Solve for x
    x = 18,122,766,238.63/153,512.21
  6. Step 6: Final answer
    x = 118,054.23

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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.