Home / 141,291.68-194,982.36-77,629.32

Finding the Fourth Proportional to 141,291.68, 194,982.36 and 77,629.32

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Solution

The fourth proportional to 141,291.68, 194,982.36 and 77,629.32 is: 107,128.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,291.68 : 194,982.36 = 77,629.32 : x
  2. Step 2: Convert to fraction form
    141,291.68/194,982.36 = 77,629.32/x
  3. Step 3: Cross multiply
    141,291.68x = 194,982.36 × 77,629.32
  4. Step 4: Simplify right side
    141,291.68x = 15,136,348,018.80
  5. Step 5: Solve for x
    x = 15,136,348,018.80/141,291.68
  6. Step 6: Final answer
    x = 107,128.37

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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.