Home / 113,729.70-156,954.34-65,999.10

Finding the Fourth Proportional to 113,729.70, 156,954.34 and 65,999.10

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Solution

The fourth proportional to 113,729.70, 156,954.34 and 65,999.10 is: 91,083.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,729.70 : 156,954.34 = 65,999.10 : x
  2. Step 2: Convert to fraction form
    113,729.70/156,954.34 = 65,999.10/x
  3. Step 3: Cross multiply
    113,729.70x = 156,954.34 × 65,999.10
  4. Step 4: Simplify right side
    113,729.70x = 10,358,845,181.09
  5. Step 5: Solve for x
    x = 10,358,845,181.09/113,729.70
  6. Step 6: Final answer
    x = 91,083.03

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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.