Home / 209,391.05-313,961.73-142,005.93

Finding the Fourth Proportional to 209,391.05, 313,961.73 and 142,005.93

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Solution

The fourth proportional to 209,391.05, 313,961.73 and 142,005.93 is: 212,924.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,391.05 : 313,961.73 = 142,005.93 : x
  2. Step 2: Convert to fraction form
    209,391.05/313,961.73 = 142,005.93/x
  3. Step 3: Cross multiply
    209,391.05x = 313,961.73 × 142,005.93
  4. Step 4: Simplify right side
    209,391.05x = 44,584,428,630.42
  5. Step 5: Solve for x
    x = 44,584,428,630.42/209,391.05
  6. Step 6: Final answer
    x = 212,924.23

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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.