Home / 121,650.18-167,858.10-67,932.60

Finding the Fourth Proportional to 121,650.18, 167,858.10 and 67,932.60

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Solution

The fourth proportional to 121,650.18, 167,858.10 and 67,932.60 is: 93,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,650.18 : 167,858.10 = 67,932.60 : x
  2. Step 2: Convert to fraction form
    121,650.18/167,858.10 = 67,932.60/x
  3. Step 3: Cross multiply
    121,650.18x = 167,858.10 × 67,932.60
  4. Step 4: Simplify right side
    121,650.18x = 11,403,037,164.06
  5. Step 5: Solve for x
    x = 11,403,037,164.06/121,650.18
  6. Step 6: Final answer
    x = 93,736.30

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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.