Home / 142,556.20-213,881.80-47,795.75

Finding the Fourth Proportional to 142,556.20, 213,881.80 and 47,795.75

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Solution

The fourth proportional to 142,556.20, 213,881.80 and 47,795.75 is: 71,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,556.20 : 213,881.80 = 47,795.75 : x
  2. Step 2: Convert to fraction form
    142,556.20/213,881.80 = 47,795.75/x
  3. Step 3: Cross multiply
    142,556.20x = 213,881.80 × 47,795.75
  4. Step 4: Simplify right side
    142,556.20x = 10,222,641,042.35
  5. Step 5: Solve for x
    x = 10,222,641,042.35/142,556.20
  6. Step 6: Final answer
    x = 71,709.55

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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.