Home / 143,629.27-215,458.65-54,957.35

Finding the Fourth Proportional to 143,629.27, 215,458.65 and 54,957.35

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Solution

The fourth proportional to 143,629.27, 215,458.65 and 54,957.35 is: 82,441.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,629.27 : 215,458.65 = 54,957.35 : x
  2. Step 2: Convert to fraction form
    143,629.27/215,458.65 = 54,957.35/x
  3. Step 3: Cross multiply
    143,629.27x = 215,458.65 × 54,957.35
  4. Step 4: Simplify right side
    143,629.27x = 11,841,036,977.22
  5. Step 5: Solve for x
    x = 11,841,036,977.22/143,629.27
  6. Step 6: Final answer
    x = 82,441.67

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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.