Home / 106,521.82-159,995.59-66,611.79

Finding the Fourth Proportional to 106,521.82, 159,995.59 and 66,611.79

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Solution

The fourth proportional to 106,521.82, 159,995.59 and 66,611.79 is: 100,050.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,521.82 : 159,995.59 = 66,611.79 : x
  2. Step 2: Convert to fraction form
    106,521.82/159,995.59 = 66,611.79/x
  3. Step 3: Cross multiply
    106,521.82x = 159,995.59 × 66,611.79
  4. Step 4: Simplify right side
    106,521.82x = 10,657,592,475.48
  5. Step 5: Solve for x
    x = 10,657,592,475.48/106,521.82
  6. Step 6: Final answer
    x = 100,050.79

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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.