Home / 147,984.30-221,992.65-143,318.70

Finding the Fourth Proportional to 147,984.30, 221,992.65 and 143,318.70

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Solution

The fourth proportional to 147,984.30, 221,992.65 and 143,318.70 is: 214,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,984.30 : 221,992.65 = 143,318.70 : x
  2. Step 2: Convert to fraction form
    147,984.30/221,992.65 = 143,318.70/x
  3. Step 3: Cross multiply
    147,984.30x = 221,992.65 × 143,318.70
  4. Step 4: Simplify right side
    147,984.30x = 31,815,698,007.56
  5. Step 5: Solve for x
    x = 31,815,698,007.56/147,984.30
  6. Step 6: Final answer
    x = 214,993.74

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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.