Home / 154,047.40-230,811.90-131,756.20

Finding the Fourth Proportional to 154,047.40, 230,811.90 and 131,756.20

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Solution

The fourth proportional to 154,047.40, 230,811.90 and 131,756.20 is: 197,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.40 : 230,811.90 = 131,756.20 : x
  2. Step 2: Convert to fraction form
    154,047.40/230,811.90 = 131,756.20/x
  3. Step 3: Cross multiply
    154,047.40x = 230,811.90 × 131,756.20
  4. Step 4: Simplify right side
    154,047.40x = 30,410,898,858.78
  5. Step 5: Solve for x
    x = 30,410,898,858.78/154,047.40
  6. Step 6: Final answer
    x = 197,412.61

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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.