Home / 193,984.76-290,820.06-87,290.36

Finding the Fourth Proportional to 193,984.76, 290,820.06 and 87,290.36

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Solution

The fourth proportional to 193,984.76, 290,820.06 and 87,290.36 is: 130,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,984.76 : 290,820.06 = 87,290.36 : x
  2. Step 2: Convert to fraction form
    193,984.76/290,820.06 = 87,290.36/x
  3. Step 3: Cross multiply
    193,984.76x = 290,820.06 × 87,290.36
  4. Step 4: Simplify right side
    193,984.76x = 25,385,787,732.62
  5. Step 5: Solve for x
    x = 25,385,787,732.62/193,984.76
  6. Step 6: Final answer
    x = 130,864.86

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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.