Home / 103,425.41-155,012.70-47,188.46

Finding the Fourth Proportional to 103,425.41, 155,012.70 and 47,188.46

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Solution

The fourth proportional to 103,425.41, 155,012.70 and 47,188.46 is: 70,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,425.41 : 155,012.70 = 47,188.46 : x
  2. Step 2: Convert to fraction form
    103,425.41/155,012.70 = 47,188.46/x
  3. Step 3: Cross multiply
    103,425.41x = 155,012.70 × 47,188.46
  4. Step 4: Simplify right side
    103,425.41x = 7,314,810,593.44
  5. Step 5: Solve for x
    x = 7,314,810,593.44/103,425.41
  6. Step 6: Final answer
    x = 70,725.47

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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.