Home / 141,582.68-195,361.71-81,141.68

Finding the Fourth Proportional to 141,582.68, 195,361.71 and 81,141.68

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Solution

The fourth proportional to 141,582.68, 195,361.71 and 81,141.68 is: 111,962.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,582.68 : 195,361.71 = 81,141.68 : x
  2. Step 2: Convert to fraction form
    141,582.68/195,361.71 = 81,141.68/x
  3. Step 3: Cross multiply
    141,582.68x = 195,361.71 × 81,141.68
  4. Step 4: Simplify right side
    141,582.68x = 15,851,977,357.07
  5. Step 5: Solve for x
    x = 15,851,977,357.07/141,582.68
  6. Step 6: Final answer
    x = 111,962.69

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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.