Home / 102,841.33-141,921.36-57,520.09

Finding the Fourth Proportional to 102,841.33, 141,921.36 and 57,520.09

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Solution

The fourth proportional to 102,841.33, 141,921.36 and 57,520.09 is: 79,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,841.33 : 141,921.36 = 57,520.09 : x
  2. Step 2: Convert to fraction form
    102,841.33/141,921.36 = 57,520.09/x
  3. Step 3: Cross multiply
    102,841.33x = 141,921.36 × 57,520.09
  4. Step 4: Simplify right side
    102,841.33x = 8,163,329,400.12
  5. Step 5: Solve for x
    x = 8,163,329,400.12/102,841.33
  6. Step 6: Final answer
    x = 79,377.91

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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.