Home / 291,106.26-436,659.35-80,744.19

Finding the Fourth Proportional to 291,106.26, 436,659.35 and 80,744.19

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Solution

The fourth proportional to 291,106.26, 436,659.35 and 80,744.19 is: 121,116.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,106.26 : 436,659.35 = 80,744.19 : x
  2. Step 2: Convert to fraction form
    291,106.26/436,659.35 = 80,744.19/x
  3. Step 3: Cross multiply
    291,106.26x = 436,659.35 × 80,744.19
  4. Step 4: Simplify right side
    291,106.26x = 35,257,705,117.96
  5. Step 5: Solve for x
    x = 35,257,705,117.96/291,106.26
  6. Step 6: Final answer
    x = 121,116.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.