Home / 118,245.35-163,135.82-91,029.75

Finding the Fourth Proportional to 118,245.35, 163,135.82 and 91,029.75

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Solution

The fourth proportional to 118,245.35, 163,135.82 and 91,029.75 is: 125,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,245.35 : 163,135.82 = 91,029.75 : x
  2. Step 2: Convert to fraction form
    118,245.35/163,135.82 = 91,029.75/x
  3. Step 3: Cross multiply
    118,245.35x = 163,135.82 × 91,029.75
  4. Step 4: Simplify right side
    118,245.35x = 14,850,212,455.50
  5. Step 5: Solve for x
    x = 14,850,212,455.50/118,245.35
  6. Step 6: Final answer
    x = 125,588.14

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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.