Home / 165,785.46-248,751.68-86,880.92

Finding the Fourth Proportional to 165,785.46, 248,751.68 and 86,880.92

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Solution

The fourth proportional to 165,785.46, 248,751.68 and 86,880.92 is: 130,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,785.46 : 248,751.68 = 86,880.92 : x
  2. Step 2: Convert to fraction form
    165,785.46/248,751.68 = 86,880.92/x
  3. Step 3: Cross multiply
    165,785.46x = 248,751.68 × 86,880.92
  4. Step 4: Simplify right side
    165,785.46x = 21,611,774,809.95
  5. Step 5: Solve for x
    x = 21,611,774,809.95/165,785.46
  6. Step 6: Final answer
    x = 130,359.89

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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.