Home / 205,823.80-308,735.70-112,511.80

Finding the Fourth Proportional to 205,823.80, 308,735.70 and 112,511.80

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Solution

The fourth proportional to 205,823.80, 308,735.70 and 112,511.80 is: 168,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,823.80 : 308,735.70 = 112,511.80 : x
  2. Step 2: Convert to fraction form
    205,823.80/308,735.70 = 112,511.80/x
  3. Step 3: Cross multiply
    205,823.80x = 308,735.70 × 112,511.80
  4. Step 4: Simplify right side
    205,823.80x = 34,736,409,331.26
  5. Step 5: Solve for x
    x = 34,736,409,331.26/205,823.80
  6. Step 6: Final answer
    x = 168,767.70

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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.