Home / 141,403.58-195,137.67-77,745.48

Finding the Fourth Proportional to 141,403.58, 195,137.67 and 77,745.48

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Solution

The fourth proportional to 141,403.58, 195,137.67 and 77,745.48 is: 107,289.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,403.58 : 195,137.67 = 77,745.48 : x
  2. Step 2: Convert to fraction form
    141,403.58/195,137.67 = 77,745.48/x
  3. Step 3: Cross multiply
    141,403.58x = 195,137.67 × 77,745.48
  4. Step 4: Simplify right side
    141,403.58x = 15,171,071,820.23
  5. Step 5: Solve for x
    x = 15,171,071,820.23/141,403.58
  6. Step 6: Final answer
    x = 107,289.16

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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.