Home / 149,199.60-205,912.92-83,799.12

Finding the Fourth Proportional to 149,199.60, 205,912.92 and 83,799.12

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Solution

The fourth proportional to 149,199.60, 205,912.92 and 83,799.12 is: 115,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,199.60 : 205,912.92 = 83,799.12 : x
  2. Step 2: Convert to fraction form
    149,199.60/205,912.92 = 83,799.12/x
  3. Step 3: Cross multiply
    149,199.60x = 205,912.92 × 83,799.12
  4. Step 4: Simplify right side
    149,199.60x = 17,255,321,492.63
  5. Step 5: Solve for x
    x = 17,255,321,492.63/149,199.60
  6. Step 6: Final answer
    x = 115,652.60

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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.