Home / 141,403.51-195,138.15-77,741.75

Finding the Fourth Proportional to 141,403.51, 195,138.15 and 77,741.75

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Solution

The fourth proportional to 141,403.51, 195,138.15 and 77,741.75 is: 107,284.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,403.51 : 195,138.15 = 77,741.75 : x
  2. Step 2: Convert to fraction form
    141,403.51/195,138.15 = 77,741.75/x
  3. Step 3: Cross multiply
    141,403.51x = 195,138.15 × 77,741.75
  4. Step 4: Simplify right side
    141,403.51x = 15,170,381,272.76
  5. Step 5: Solve for x
    x = 15,170,381,272.76/141,403.51
  6. Step 6: Final answer
    x = 107,284.33

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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.