Home / 130,558.43-180,170.53-73,969.81

Finding the Fourth Proportional to 130,558.43, 180,170.53 and 73,969.81

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Solution

The fourth proportional to 130,558.43, 180,170.53 and 73,969.81 is: 102,078.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,558.43 : 180,170.53 = 73,969.81 : x
  2. Step 2: Convert to fraction form
    130,558.43/180,170.53 = 73,969.81/x
  3. Step 3: Cross multiply
    130,558.43x = 180,170.53 × 73,969.81
  4. Step 4: Simplify right side
    130,558.43x = 13,327,179,236.35
  5. Step 5: Solve for x
    x = 13,327,179,236.35/130,558.43
  6. Step 6: Final answer
    x = 102,078.27

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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.