Home / 121,928.91-167,887.98-106,736.55

Finding the Fourth Proportional to 121,928.91, 167,887.98 and 106,736.55

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Solution

The fourth proportional to 121,928.91, 167,887.98 and 106,736.55 is: 146,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,928.91 : 167,887.98 = 106,736.55 : x
  2. Step 2: Convert to fraction form
    121,928.91/167,887.98 = 106,736.55/x
  3. Step 3: Cross multiply
    121,928.91x = 167,887.98 × 106,736.55
  4. Step 4: Simplify right side
    121,928.91x = 17,919,783,771.67
  5. Step 5: Solve for x
    x = 17,919,783,771.67/121,928.91
  6. Step 6: Final answer
    x = 146,969.11

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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.