Home / 101,394.06-139,738.23-67,342.38

Finding the Fourth Proportional to 101,394.06, 139,738.23 and 67,342.38

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Solution

The fourth proportional to 101,394.06, 139,738.23 and 67,342.38 is: 92,809.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,394.06 : 139,738.23 = 67,342.38 : x
  2. Step 2: Convert to fraction form
    101,394.06/139,738.23 = 67,342.38/x
  3. Step 3: Cross multiply
    101,394.06x = 139,738.23 × 67,342.38
  4. Step 4: Simplify right side
    101,394.06x = 9,410,304,985.19
  5. Step 5: Solve for x
    x = 9,410,304,985.19/101,394.06
  6. Step 6: Final answer
    x = 92,809.23

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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.