Home / 118,212.12-163,131.30-67,911.12

Finding the Fourth Proportional to 118,212.12, 163,131.30 and 67,911.12

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Solution

The fourth proportional to 118,212.12, 163,131.30 and 67,911.12 is: 93,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,212.12 : 163,131.30 = 67,911.12 : x
  2. Step 2: Convert to fraction form
    118,212.12/163,131.30 = 67,911.12/x
  3. Step 3: Cross multiply
    118,212.12x = 163,131.30 × 67,911.12
  4. Step 4: Simplify right side
    118,212.12x = 11,078,429,290.06
  5. Step 5: Solve for x
    x = 11,078,429,290.06/118,212.12
  6. Step 6: Final answer
    x = 93,716.53

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1.5x scale

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.