Home / 148,960.20-223,440.30-85,974.60

Finding the Fourth Proportional to 148,960.20, 223,440.30 and 85,974.60

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Solution

The fourth proportional to 148,960.20, 223,440.30 and 85,974.60 is: 128,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,960.20 : 223,440.30 = 85,974.60 : x
  2. Step 2: Convert to fraction form
    148,960.20/223,440.30 = 85,974.60/x
  3. Step 3: Cross multiply
    148,960.20x = 223,440.30 × 85,974.60
  4. Step 4: Simplify right side
    148,960.20x = 19,210,190,416.38
  5. Step 5: Solve for x
    x = 19,210,190,416.38/148,960.20
  6. Step 6: Final answer
    x = 128,961.90

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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.