Home / 154,035.21-230,490.78-90,885.59

Finding the Fourth Proportional to 154,035.21, 230,490.78 and 90,885.59

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Solution

The fourth proportional to 154,035.21, 230,490.78 and 90,885.59 is: 135,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,035.21 : 230,490.78 = 90,885.59 : x
  2. Step 2: Convert to fraction form
    154,035.21/230,490.78 = 90,885.59/x
  3. Step 3: Cross multiply
    154,035.21x = 230,490.78 × 90,885.59
  4. Step 4: Simplify right side
    154,035.21x = 20,948,289,900.93
  5. Step 5: Solve for x
    x = 20,948,289,900.93/154,035.21
  6. Step 6: Final answer
    x = 135,996.76

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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.