Home / 106,994.26-159,788.81-85,966.25

Finding the Fourth Proportional to 106,994.26, 159,788.81 and 85,966.25

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Solution

The fourth proportional to 106,994.26, 159,788.81 and 85,966.25 is: 128,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,994.26 : 159,788.81 = 85,966.25 : x
  2. Step 2: Convert to fraction form
    106,994.26/159,788.81 = 85,966.25/x
  3. Step 3: Cross multiply
    106,994.26x = 159,788.81 × 85,966.25
  4. Step 4: Simplify right side
    106,994.26x = 13,736,444,757.30
  5. Step 5: Solve for x
    x = 13,736,444,757.30/106,994.26
  6. Step 6: Final answer
    x = 128,384.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.