Home / 102,745.57-141,786.06-57,423.73

Finding the Fourth Proportional to 102,745.57, 141,786.06 and 57,423.73

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Solution

The fourth proportional to 102,745.57, 141,786.06 and 57,423.73 is: 79,243.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,745.57 : 141,786.06 = 57,423.73 : x
  2. Step 2: Convert to fraction form
    102,745.57/141,786.06 = 57,423.73/x
  3. Step 3: Cross multiply
    102,745.57x = 141,786.06 × 57,423.73
  4. Step 4: Simplify right side
    102,745.57x = 8,141,884,427.20
  5. Step 5: Solve for x
    x = 8,141,884,427.20/102,745.57
  6. Step 6: Final answer
    x = 79,243.17

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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.