Home / 141,948.93-195,893.89-81,531.69

Finding the Fourth Proportional to 141,948.93, 195,893.89 and 81,531.69

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Solution

The fourth proportional to 141,948.93, 195,893.89 and 81,531.69 is: 112,516.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,948.93 : 195,893.89 = 81,531.69 : x
  2. Step 2: Convert to fraction form
    141,948.93/195,893.89 = 81,531.69/x
  3. Step 3: Cross multiply
    141,948.93x = 195,893.89 × 81,531.69
  4. Step 4: Simplify right side
    141,948.93x = 15,971,559,626.47
  5. Step 5: Solve for x
    x = 15,971,559,626.47/141,948.93
  6. Step 6: Final answer
    x = 112,516.24

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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.