Home / 141,727.45-195,583.86-78,065.25

Finding the Fourth Proportional to 141,727.45, 195,583.86 and 78,065.25

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Solution

The fourth proportional to 141,727.45, 195,583.86 and 78,065.25 is: 107,730.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,727.45 : 195,583.86 = 78,065.25 : x
  2. Step 2: Convert to fraction form
    141,727.45/195,583.86 = 78,065.25/x
  3. Step 3: Cross multiply
    141,727.45x = 195,583.86 × 78,065.25
  4. Step 4: Simplify right side
    141,727.45x = 15,268,302,926.87
  5. Step 5: Solve for x
    x = 15,268,302,926.87/141,727.45
  6. Step 6: Final answer
    x = 107,730.03

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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.