Home / 103,680.47-155,515.24-51,072.19

Finding the Fourth Proportional to 103,680.47, 155,515.24 and 51,072.19

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Solution

The fourth proportional to 103,680.47, 155,515.24 and 51,072.19 is: 76,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680.47 : 155,515.24 = 51,072.19 : x
  2. Step 2: Convert to fraction form
    103,680.47/155,515.24 = 51,072.19/x
  3. Step 3: Cross multiply
    103,680.47x = 155,515.24 × 51,072.19
  4. Step 4: Simplify right side
    103,680.47x = 7,942,503,560.23
  5. Step 5: Solve for x
    x = 7,942,503,560.23/103,680.47
  6. Step 6: Final answer
    x = 76,605.59

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1.5x scale

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.