Home / 141,751.41-195,625.80-78,089.20

Finding the Fourth Proportional to 141,751.41, 195,625.80 and 78,089.20

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Solution

The fourth proportional to 141,751.41, 195,625.80 and 78,089.20 is: 107,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,751.41 : 195,625.80 = 78,089.20 : x
  2. Step 2: Convert to fraction form
    141,751.41/195,625.80 = 78,089.20/x
  3. Step 3: Cross multiply
    141,751.41x = 195,625.80 × 78,089.20
  4. Step 4: Simplify right side
    141,751.41x = 15,276,262,221.36
  5. Step 5: Solve for x
    x = 15,276,262,221.36/141,751.41
  6. Step 6: Final answer
    x = 107,767.97

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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.