Home / 117,698.61-162,271.63-76,231.83

Finding the Fourth Proportional to 117,698.61, 162,271.63 and 76,231.83

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Solution

The fourth proportional to 117,698.61, 162,271.63 and 76,231.83 is: 105,101.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,698.61 : 162,271.63 = 76,231.83 : x
  2. Step 2: Convert to fraction form
    117,698.61/162,271.63 = 76,231.83/x
  3. Step 3: Cross multiply
    117,698.61x = 162,271.63 × 76,231.83
  4. Step 4: Simplify right side
    117,698.61x = 12,370,263,028.85
  5. Step 5: Solve for x
    x = 12,370,263,028.85/117,698.61
  6. Step 6: Final answer
    x = 105,101.18

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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.