Home / 102,841.89-141,920.82-57,519.33

Finding the Fourth Proportional to 102,841.89, 141,920.82 and 57,519.33

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Solution

The fourth proportional to 102,841.89, 141,920.82 and 57,519.33 is: 79,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,841.89 : 141,920.82 = 57,519.33 : x
  2. Step 2: Convert to fraction form
    102,841.89/141,920.82 = 57,519.33/x
  3. Step 3: Cross multiply
    102,841.89x = 141,920.82 × 57,519.33
  4. Step 4: Simplify right side
    102,841.89x = 8,163,190,479.45
  5. Step 5: Solve for x
    x = 8,163,190,479.45/102,841.89
  6. Step 6: Final answer
    x = 79,376.12

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1.5x scale

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.