Home / 102,571.39-141,436.92-66,694.87

Finding the Fourth Proportional to 102,571.39, 141,436.92 and 66,694.87

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Solution

The fourth proportional to 102,571.39, 141,436.92 and 66,694.87 is: 91,966.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,571.39 : 141,436.92 = 66,694.87 : x
  2. Step 2: Convert to fraction form
    102,571.39/141,436.92 = 66,694.87/x
  3. Step 3: Cross multiply
    102,571.39x = 141,436.92 × 66,694.87
  4. Step 4: Simplify right side
    102,571.39x = 9,433,116,889.11
  5. Step 5: Solve for x
    x = 9,433,116,889.11/102,571.39
  6. Step 6: Final answer
    x = 91,966.36

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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.