Home / 121,999.23-168,357.29-68,284.23

Finding the Fourth Proportional to 121,999.23, 168,357.29 and 68,284.23

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Solution

The fourth proportional to 121,999.23, 168,357.29 and 68,284.23 is: 94,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,999.23 : 168,357.29 = 68,284.23 : x
  2. Step 2: Convert to fraction form
    121,999.23/168,357.29 = 68,284.23/x
  3. Step 3: Cross multiply
    121,999.23x = 168,357.29 × 68,284.23
  4. Step 4: Simplify right side
    121,999.23x = 11,496,148,586.55
  5. Step 5: Solve for x
    x = 11,496,148,586.55/121,999.23
  6. Step 6: Final answer
    x = 94,231.32

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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.