Home / 108,741.36-149,987.19-105,083.67

Finding the Fourth Proportional to 108,741.36, 149,987.19 and 105,083.67

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Solution

The fourth proportional to 108,741.36, 149,987.19 and 105,083.67 is: 144,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,741.36 : 149,987.19 = 105,083.67 : x
  2. Step 2: Convert to fraction form
    108,741.36/149,987.19 = 105,083.67/x
  3. Step 3: Cross multiply
    108,741.36x = 149,987.19 × 105,083.67
  4. Step 4: Simplify right side
    108,741.36x = 15,761,204,378.19
  5. Step 5: Solve for x
    x = 15,761,204,378.19/108,741.36
  6. Step 6: Final answer
    x = 144,942.13

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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.