Home / 149,621.20-224,431.80-140,405.20

Finding the Fourth Proportional to 149,621.20, 224,431.80 and 140,405.20

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Solution

The fourth proportional to 149,621.20, 224,431.80 and 140,405.20 is: 210,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,621.20 : 224,431.80 = 140,405.20 : x
  2. Step 2: Convert to fraction form
    149,621.20/224,431.80 = 140,405.20/x
  3. Step 3: Cross multiply
    149,621.20x = 224,431.80 × 140,405.20
  4. Step 4: Simplify right side
    149,621.20x = 31,511,391,765.36
  5. Step 5: Solve for x
    x = 31,511,391,765.36/149,621.20
  6. Step 6: Final answer
    x = 210,607.80

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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.