Home / 104,541.36-144,168.72-80,630.16

Finding the Fourth Proportional to 104,541.36, 144,168.72 and 80,630.16

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Solution

The fourth proportional to 104,541.36, 144,168.72 and 80,630.16 is: 111,193.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,541.36 : 144,168.72 = 80,630.16 : x
  2. Step 2: Convert to fraction form
    104,541.36/144,168.72 = 80,630.16/x
  3. Step 3: Cross multiply
    104,541.36x = 144,168.72 × 80,630.16
  4. Step 4: Simplify right side
    104,541.36x = 11,624,346,960.60
  5. Step 5: Solve for x
    x = 11,624,346,960.60/104,541.36
  6. Step 6: Final answer
    x = 111,193.76

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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.