Home / 103,865.36-155,735.69-47,635.03

Finding the Fourth Proportional to 103,865.36, 155,735.69 and 47,635.03

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Solution

The fourth proportional to 103,865.36, 155,735.69 and 47,635.03 is: 71,423.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,865.36 : 155,735.69 = 47,635.03 : x
  2. Step 2: Convert to fraction form
    103,865.36/155,735.69 = 47,635.03/x
  3. Step 3: Cross multiply
    103,865.36x = 155,735.69 × 47,635.03
  4. Step 4: Simplify right side
    103,865.36x = 7,418,473,486.54
  5. Step 5: Solve for x
    x = 7,418,473,486.54/103,865.36
  6. Step 6: Final answer
    x = 71,423.94

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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.