Home / 103,696.85-155,628.35-47,563.43

Finding the Fourth Proportional to 103,696.85, 155,628.35 and 47,563.43

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Solution

The fourth proportional to 103,696.85, 155,628.35 and 47,563.43 is: 71,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,696.85 : 155,628.35 = 47,563.43 : x
  2. Step 2: Convert to fraction form
    103,696.85/155,628.35 = 47,563.43/x
  3. Step 3: Cross multiply
    103,696.85x = 155,628.35 × 47,563.43
  4. Step 4: Simplify right side
    103,696.85x = 7,402,217,115.28
  5. Step 5: Solve for x
    x = 7,402,217,115.28/103,696.85
  6. Step 6: Final answer
    x = 71,383.24

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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.