Home / 109,427.41-164,139.43-66,745.36

Finding the Fourth Proportional to 109,427.41, 164,139.43 and 66,745.36

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Solution

The fourth proportional to 109,427.41, 164,139.43 and 66,745.36 is: 100,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,427.41 : 164,139.43 = 66,745.36 : x
  2. Step 2: Convert to fraction form
    109,427.41/164,139.43 = 66,745.36/x
  3. Step 3: Cross multiply
    109,427.41x = 164,139.43 × 66,745.36
  4. Step 4: Simplify right side
    109,427.41x = 10,955,545,345.54
  5. Step 5: Solve for x
    x = 10,955,545,345.54/109,427.41
  6. Step 6: Final answer
    x = 100,117.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.