Home / 154,412.67-231,658.94-90,424.86

Finding the Fourth Proportional to 154,412.67, 231,658.94 and 90,424.86

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Solution

The fourth proportional to 154,412.67, 231,658.94 and 90,424.86 is: 135,660.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,412.67 : 231,658.94 = 90,424.86 : x
  2. Step 2: Convert to fraction form
    154,412.67/231,658.94 = 90,424.86/x
  3. Step 3: Cross multiply
    154,412.67x = 231,658.94 × 90,424.86
  4. Step 4: Simplify right side
    154,412.67x = 20,947,726,065.95
  5. Step 5: Solve for x
    x = 20,947,726,065.95/154,412.67
  6. Step 6: Final answer
    x = 135,660.67

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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.