Home / 154,493.20-231,739.80-49,315.60

Finding the Fourth Proportional to 154,493.20, 231,739.80 and 49,315.60

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Solution

The fourth proportional to 154,493.20, 231,739.80 and 49,315.60 is: 73,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,493.20 : 231,739.80 = 49,315.60 : x
  2. Step 2: Convert to fraction form
    154,493.20/231,739.80 = 49,315.60/x
  3. Step 3: Cross multiply
    154,493.20x = 231,739.80 × 49,315.60
  4. Step 4: Simplify right side
    154,493.20x = 11,428,387,280.88
  5. Step 5: Solve for x
    x = 11,428,387,280.88/154,493.20
  6. Step 6: Final answer
    x = 73,973.40

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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.