Home / 141,880.31-195,796.35-78,220.39

Finding the Fourth Proportional to 141,880.31, 195,796.35 and 78,220.39

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Solution

The fourth proportional to 141,880.31, 195,796.35 and 78,220.39 is: 107,944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,880.31 : 195,796.35 = 78,220.39 : x
  2. Step 2: Convert to fraction form
    141,880.31/195,796.35 = 78,220.39/x
  3. Step 3: Cross multiply
    141,880.31x = 195,796.35 × 78,220.39
  4. Step 4: Simplify right side
    141,880.31x = 15,315,265,487.49
  5. Step 5: Solve for x
    x = 15,315,265,487.49/141,880.31
  6. Step 6: Final answer
    x = 107,944.97

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1.5x scale

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.