Home / 154,511.27-213,132.43-90,796.67

Finding the Fourth Proportional to 154,511.27, 213,132.43 and 90,796.67

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Solution

The fourth proportional to 154,511.27, 213,132.43 and 90,796.67 is: 125,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,511.27 : 213,132.43 = 90,796.67 : x
  2. Step 2: Convert to fraction form
    154,511.27/213,132.43 = 90,796.67/x
  3. Step 3: Cross multiply
    154,511.27x = 213,132.43 × 90,796.67
  4. Step 4: Simplify right side
    154,511.27x = 19,351,714,913.01
  5. Step 5: Solve for x
    x = 19,351,714,913.01/154,511.27
  6. Step 6: Final answer
    x = 125,244.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.