Home / 131,629.26-181,570.05-79,928.58

Finding the Fourth Proportional to 131,629.26, 181,570.05 and 79,928.58

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Solution

The fourth proportional to 131,629.26, 181,570.05 and 79,928.58 is: 110,253.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,629.26 : 181,570.05 = 79,928.58 : x
  2. Step 2: Convert to fraction form
    131,629.26/181,570.05 = 79,928.58/x
  3. Step 3: Cross multiply
    131,629.26x = 181,570.05 × 79,928.58
  4. Step 4: Simplify right side
    131,629.26x = 14,512,636,267.03
  5. Step 5: Solve for x
    x = 14,512,636,267.03/131,629.26
  6. Step 6: Final answer
    x = 110,253.88

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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.