Home / 159,142.26-219,611.22-87,522.06

Finding the Fourth Proportional to 159,142.26, 219,611.22 and 87,522.06

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Solution

The fourth proportional to 159,142.26, 219,611.22 and 87,522.06 is: 120,777.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,142.26 : 219,611.22 = 87,522.06 : x
  2. Step 2: Convert to fraction form
    159,142.26/219,611.22 = 87,522.06/x
  3. Step 3: Cross multiply
    159,142.26x = 219,611.22 × 87,522.06
  4. Step 4: Simplify right side
    159,142.26x = 19,220,826,373.51
  5. Step 5: Solve for x
    x = 19,220,826,373.51/159,142.26
  6. Step 6: Final answer
    x = 120,777.64

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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.