Home / 154,493.20-231,739.80-109,878.40

Finding the Fourth Proportional to 154,493.20, 231,739.80 and 109,878.40

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Solution

The fourth proportional to 154,493.20, 231,739.80 and 109,878.40 is: 164,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,493.20 : 231,739.80 = 109,878.40 : x
  2. Step 2: Convert to fraction form
    154,493.20/231,739.80 = 109,878.40/x
  3. Step 3: Cross multiply
    154,493.20x = 231,739.80 × 109,878.40
  4. Step 4: Simplify right side
    154,493.20x = 25,463,198,440.32
  5. Step 5: Solve for x
    x = 25,463,198,440.32/154,493.20
  6. Step 6: Final answer
    x = 164,817.60

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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.