Home / 141,493.77-195,275.71-81,072.43

Finding the Fourth Proportional to 141,493.77, 195,275.71 and 81,072.43

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Solution

The fourth proportional to 141,493.77, 195,275.71 and 81,072.43 is: 111,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,493.77 : 195,275.71 = 81,072.43 : x
  2. Step 2: Convert to fraction form
    141,493.77/195,275.71 = 81,072.43/x
  3. Step 3: Cross multiply
    141,493.77x = 195,275.71 × 81,072.43
  4. Step 4: Simplify right side
    141,493.77x = 15,831,475,942.83
  5. Step 5: Solve for x
    x = 15,831,475,942.83/141,493.77
  6. Step 6: Final answer
    x = 111,888.15

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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.