Home / 102,351.40-141,240.92-57,028.22

Finding the Fourth Proportional to 102,351.40, 141,240.92 and 57,028.22

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Solution

The fourth proportional to 102,351.40, 141,240.92 and 57,028.22 is: 78,696.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,351.40 : 141,240.92 = 57,028.22 : x
  2. Step 2: Convert to fraction form
    102,351.40/141,240.92 = 57,028.22/x
  3. Step 3: Cross multiply
    102,351.40x = 141,240.92 × 57,028.22
  4. Step 4: Simplify right side
    102,351.40x = 8,054,718,258.76
  5. Step 5: Solve for x
    x = 8,054,718,258.76/102,351.40
  6. Step 6: Final answer
    x = 78,696.71

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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.