Home / 141,956.42-195,899.54-81,531

Finding the Fourth Proportional to 141,956.42, 195,899.54 and 81,531

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Solution

The fourth proportional to 141,956.42, 195,899.54 and 81,531 is: 112,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,956.42 : 195,899.54 = 81,531 : x
  2. Step 2: Convert to fraction form
    141,956.42/195,899.54 = 81,531/x
  3. Step 3: Cross multiply
    141,956.42x = 195,899.54 × 81,531
  4. Step 4: Simplify right side
    141,956.42x = 15,971,884,988.09
  5. Step 5: Solve for x
    x = 15,971,884,988.09/141,956.42
  6. Step 6: Final answer
    x = 112,512.60

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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.