Home / 112,980.99-156,120.07-82,300.69

Finding the Fourth Proportional to 112,980.99, 156,120.07 and 82,300.69

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Solution

The fourth proportional to 112,980.99, 156,120.07 and 82,300.69 is: 113,725.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,980.99 : 156,120.07 = 82,300.69 : x
  2. Step 2: Convert to fraction form
    112,980.99/156,120.07 = 82,300.69/x
  3. Step 3: Cross multiply
    112,980.99x = 156,120.07 × 82,300.69
  4. Step 4: Simplify right side
    112,980.99x = 12,848,788,703.25
  5. Step 5: Solve for x
    x = 12,848,788,703.25/112,980.99
  6. Step 6: Final answer
    x = 113,725.23

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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.