Home / 115,418.40-159,286.14-67,698.06

Finding the Fourth Proportional to 115,418.40, 159,286.14 and 67,698.06

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Solution

The fourth proportional to 115,418.40, 159,286.14 and 67,698.06 is: 93,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,418.40 : 159,286.14 = 67,698.06 : x
  2. Step 2: Convert to fraction form
    115,418.40/159,286.14 = 67,698.06/x
  3. Step 3: Cross multiply
    115,418.40x = 159,286.14 × 67,698.06
  4. Step 4: Simplify right side
    115,418.40x = 10,783,362,662.89
  5. Step 5: Solve for x
    x = 10,783,362,662.89/115,418.40
  6. Step 6: Final answer
    x = 93,428.45

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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.