Home / 148,288.40-222,130.20-91,955.60

Finding the Fourth Proportional to 148,288.40, 222,130.20 and 91,955.60

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Solution

The fourth proportional to 148,288.40, 222,130.20 and 91,955.60 is: 137,745.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,288.40 : 222,130.20 = 91,955.60 : x
  2. Step 2: Convert to fraction form
    148,288.40/222,130.20 = 91,955.60/x
  3. Step 3: Cross multiply
    148,288.40x = 222,130.20 × 91,955.60
  4. Step 4: Simplify right side
    148,288.40x = 20,426,115,819.12
  5. Step 5: Solve for x
    x = 20,426,115,819.12/148,288.40
  6. Step 6: Final answer
    x = 137,745.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.