Home / 154,406.20-231,695.70-65,644.60

Finding the Fourth Proportional to 154,406.20, 231,695.70 and 65,644.60

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Solution

The fourth proportional to 154,406.20, 231,695.70 and 65,644.60 is: 98,503.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,406.20 : 231,695.70 = 65,644.60 : x
  2. Step 2: Convert to fraction form
    154,406.20/231,695.70 = 65,644.60/x
  3. Step 3: Cross multiply
    154,406.20x = 231,695.70 × 65,644.60
  4. Step 4: Simplify right side
    154,406.20x = 15,209,571,548.22
  5. Step 5: Solve for x
    x = 15,209,571,548.22/154,406.20
  6. Step 6: Final answer
    x = 98,503.63

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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.