Home / 123,768.45-185,500.17-48,813.21

Finding the Fourth Proportional to 123,768.45, 185,500.17 and 48,813.21

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Solution

The fourth proportional to 123,768.45, 185,500.17 and 48,813.21 is: 73,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,768.45 : 185,500.17 = 48,813.21 : x
  2. Step 2: Convert to fraction form
    123,768.45/185,500.17 = 48,813.21/x
  3. Step 3: Cross multiply
    123,768.45x = 185,500.17 × 48,813.21
  4. Step 4: Simplify right side
    123,768.45x = 9,054,858,753.25
  5. Step 5: Solve for x
    x = 9,054,858,753.25/123,768.45
  6. Step 6: Final answer
    x = 73,159.67

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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.