Home / 170,640.30-255,851.09-70,869.36

Finding the Fourth Proportional to 170,640.30, 255,851.09 and 70,869.36

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Solution

The fourth proportional to 170,640.30, 255,851.09 and 70,869.36 is: 106,258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,640.30 : 255,851.09 = 70,869.36 : x
  2. Step 2: Convert to fraction form
    170,640.30/255,851.09 = 70,869.36/x
  3. Step 3: Cross multiply
    170,640.30x = 255,851.09 × 70,869.36
  4. Step 4: Simplify right side
    170,640.30x = 18,132,003,003.60
  5. Step 5: Solve for x
    x = 18,132,003,003.60/170,640.30
  6. Step 6: Final answer
    x = 106,258.62

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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.