Home / 117,986.53-162,820.57-64,271.54

Finding the Fourth Proportional to 117,986.53, 162,820.57 and 64,271.54

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Solution

The fourth proportional to 117,986.53, 162,820.57 and 64,271.54 is: 88,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,986.53 : 162,820.57 = 64,271.54 : x
  2. Step 2: Convert to fraction form
    117,986.53/162,820.57 = 64,271.54/x
  3. Step 3: Cross multiply
    117,986.53x = 162,820.57 × 64,271.54
  4. Step 4: Simplify right side
    117,986.53x = 10,464,728,777.58
  5. Step 5: Solve for x
    x = 10,464,728,777.58/117,986.53
  6. Step 6: Final answer
    x = 88,694.27

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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.