Home / 118,110.77-162,986.68-67,116.68

Finding the Fourth Proportional to 118,110.77, 162,986.68 and 67,116.68

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Solution

The fourth proportional to 118,110.77, 162,986.68 and 67,116.68 is: 92,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,110.77 : 162,986.68 = 67,116.68 : x
  2. Step 2: Convert to fraction form
    118,110.77/162,986.68 = 67,116.68/x
  3. Step 3: Cross multiply
    118,110.77x = 162,986.68 × 67,116.68
  4. Step 4: Simplify right side
    118,110.77x = 10,939,124,845.82
  5. Step 5: Solve for x
    x = 10,939,124,845.82/118,110.77
  6. Step 6: Final answer
    x = 92,617.51

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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.