Home / 170,708.40-255,918-70,806.24

Finding the Fourth Proportional to 170,708.40, 255,918 and 70,806.24

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Solution

The fourth proportional to 170,708.40, 255,918 and 70,806.24 is: 106,149.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,708.40 : 255,918 = 70,806.24 : x
  2. Step 2: Convert to fraction form
    170,708.40/255,918 = 70,806.24/x
  3. Step 3: Cross multiply
    170,708.40x = 255,918 × 70,806.24
  4. Step 4: Simplify right side
    170,708.40x = 18,120,591,328.32
  5. Step 5: Solve for x
    x = 18,120,591,328.32/170,708.40
  6. Step 6: Final answer
    x = 106,149.38

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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.