Home / 106,462.80-159,694.20-90,631.35

Finding the Fourth Proportional to 106,462.80, 159,694.20 and 90,631.35

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Solution

The fourth proportional to 106,462.80, 159,694.20 and 90,631.35 is: 135,947.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,462.80 : 159,694.20 = 90,631.35 : x
  2. Step 2: Convert to fraction form
    106,462.80/159,694.20 = 90,631.35/x
  3. Step 3: Cross multiply
    106,462.80x = 159,694.20 × 90,631.35
  4. Step 4: Simplify right side
    106,462.80x = 14,473,300,933.17
  5. Step 5: Solve for x
    x = 14,473,300,933.17/106,462.80
  6. Step 6: Final answer
    x = 135,947.03

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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.