Home / 141,871.19-195,783.75-78,211.26

Finding the Fourth Proportional to 141,871.19, 195,783.75 and 78,211.26

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Solution

The fourth proportional to 141,871.19, 195,783.75 and 78,211.26 is: 107,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,871.19 : 195,783.75 = 78,211.26 : x
  2. Step 2: Convert to fraction form
    141,871.19/195,783.75 = 78,211.26/x
  3. Step 3: Cross multiply
    141,871.19x = 195,783.75 × 78,211.26
  4. Step 4: Simplify right side
    141,871.19x = 15,312,493,775.03
  5. Step 5: Solve for x
    x = 15,312,493,775.03/141,871.19
  6. Step 6: Final answer
    x = 107,932.37

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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.