Home / 149,138.22-205,817.94-85,476.18

Finding the Fourth Proportional to 149,138.22, 205,817.94 and 85,476.18

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Solution

The fourth proportional to 149,138.22, 205,817.94 and 85,476.18 is: 117,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,138.22 : 205,817.94 = 85,476.18 : x
  2. Step 2: Convert to fraction form
    149,138.22/205,817.94 = 85,476.18/x
  3. Step 3: Cross multiply
    149,138.22x = 205,817.94 × 85,476.18
  4. Step 4: Simplify right side
    149,138.22x = 17,592,531,286.67
  5. Step 5: Solve for x
    x = 17,592,531,286.67/149,138.22
  6. Step 6: Final answer
    x = 117,961.25

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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.