Home / 104,815.72-144,370.20-80,570.32

Finding the Fourth Proportional to 104,815.72, 144,370.20 and 80,570.32

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Solution

The fourth proportional to 104,815.72, 144,370.20 and 80,570.32 is: 110,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,815.72 : 144,370.20 = 80,570.32 : x
  2. Step 2: Convert to fraction form
    104,815.72/144,370.20 = 80,570.32/x
  3. Step 3: Cross multiply
    104,815.72x = 144,370.20 × 80,570.32
  4. Step 4: Simplify right side
    104,815.72x = 11,631,953,212.46
  5. Step 5: Solve for x
    x = 11,631,953,212.46/104,815.72
  6. Step 6: Final answer
    x = 110,975.27

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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.