Home / 144,634.20-217,059.30-74,477.40

Finding the Fourth Proportional to 144,634.20, 217,059.30 and 74,477.40

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Solution

The fourth proportional to 144,634.20, 217,059.30 and 74,477.40 is: 111,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,634.20 : 217,059.30 = 74,477.40 : x
  2. Step 2: Convert to fraction form
    144,634.20/217,059.30 = 74,477.40/x
  3. Step 3: Cross multiply
    144,634.20x = 217,059.30 × 74,477.40
  4. Step 4: Simplify right side
    144,634.20x = 16,166,012,309.82
  5. Step 5: Solve for x
    x = 16,166,012,309.82/144,634.20
  6. Step 6: Final answer
    x = 111,771.71

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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.