Home / 141,907.23-195,823.03-78,245.55

Finding the Fourth Proportional to 141,907.23, 195,823.03 and 78,245.55

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Solution

The fourth proportional to 141,907.23, 195,823.03 and 78,245.55 is: 107,973.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,907.23 : 195,823.03 = 78,245.55 : x
  2. Step 2: Convert to fraction form
    141,907.23/195,823.03 = 78,245.55/x
  3. Step 3: Cross multiply
    141,907.23x = 195,823.03 × 78,245.55
  4. Step 4: Simplify right side
    141,907.23x = 15,322,280,685.02
  5. Step 5: Solve for x
    x = 15,322,280,685.02/141,907.23
  6. Step 6: Final answer
    x = 107,973.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.