Home / 215,629.87-297,572.48-123,764.35

Finding the Fourth Proportional to 215,629.87, 297,572.48 and 123,764.35

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Solution

The fourth proportional to 215,629.87, 297,572.48 and 123,764.35 is: 170,796.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,629.87 : 297,572.48 = 123,764.35 : x
  2. Step 2: Convert to fraction form
    215,629.87/297,572.48 = 123,764.35/x
  3. Step 3: Cross multiply
    215,629.87x = 297,572.48 × 123,764.35
  4. Step 4: Simplify right side
    215,629.87x = 36,828,863,946.27
  5. Step 5: Solve for x
    x = 36,828,863,946.27/215,629.87
  6. Step 6: Final answer
    x = 170,796.67

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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.