Home / 118,962.15-164,081.70-101,028.75

Finding the Fourth Proportional to 118,962.15, 164,081.70 and 101,028.75

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Solution

The fourth proportional to 118,962.15, 164,081.70 and 101,028.75 is: 139,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,962.15 : 164,081.70 = 101,028.75 : x
  2. Step 2: Convert to fraction form
    118,962.15/164,081.70 = 101,028.75/x
  3. Step 3: Cross multiply
    118,962.15x = 164,081.70 × 101,028.75
  4. Step 4: Simplify right side
    118,962.15x = 16,576,969,048.88
  5. Step 5: Solve for x
    x = 16,576,969,048.88/118,962.15
  6. Step 6: Final answer
    x = 139,346.58

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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.