Home / 141,314.96-195,012.43-77,651.39

Finding the Fourth Proportional to 141,314.96, 195,012.43 and 77,651.39

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Solution

The fourth proportional to 141,314.96, 195,012.43 and 77,651.39 is: 107,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,314.96 : 195,012.43 = 77,651.39 : x
  2. Step 2: Convert to fraction form
    141,314.96/195,012.43 = 77,651.39/x
  3. Step 3: Cross multiply
    141,314.96x = 195,012.43 × 77,651.39
  4. Step 4: Simplify right side
    141,314.96x = 15,142,986,550.18
  5. Step 5: Solve for x
    x = 15,142,986,550.18/141,314.96
  6. Step 6: Final answer
    x = 107,157.70

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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.