Home / 214,636.80-321,686.40-109,497.60

Finding the Fourth Proportional to 214,636.80, 321,686.40 and 109,497.60

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Solution

The fourth proportional to 214,636.80, 321,686.40 and 109,497.60 is: 164,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,636.80 : 321,686.40 = 109,497.60 : x
  2. Step 2: Convert to fraction form
    214,636.80/321,686.40 = 109,497.60/x
  3. Step 3: Cross multiply
    214,636.80x = 321,686.40 × 109,497.60
  4. Step 4: Simplify right side
    214,636.80x = 35,223,888,752.64
  5. Step 5: Solve for x
    x = 35,223,888,752.64/214,636.80
  6. Step 6: Final answer
    x = 164,109.27

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1.5x scale

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.