Home / 102,705.37-154,184.92-48,721.67

Finding the Fourth Proportional to 102,705.37, 154,184.92 and 48,721.67

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Solution

The fourth proportional to 102,705.37, 154,184.92 and 48,721.67 is: 73,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,705.37 : 154,184.92 = 48,721.67 : x
  2. Step 2: Convert to fraction form
    102,705.37/154,184.92 = 48,721.67/x
  3. Step 3: Cross multiply
    102,705.37x = 154,184.92 × 48,721.67
  4. Step 4: Simplify right side
    102,705.37x = 7,512,147,054.87
  5. Step 5: Solve for x
    x = 7,512,147,054.87/102,705.37
  6. Step 6: Final answer
    x = 73,142.69

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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.