Home / 236,221.20-325,986.72-128,793.02

Finding the Fourth Proportional to 236,221.20, 325,986.72 and 128,793.02

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Solution

The fourth proportional to 236,221.20, 325,986.72 and 128,793.02 is: 177,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,221.20 : 325,986.72 = 128,793.02 : x
  2. Step 2: Convert to fraction form
    236,221.20/325,986.72 = 128,793.02/x
  3. Step 3: Cross multiply
    236,221.20x = 325,986.72 × 128,793.02
  4. Step 4: Simplify right side
    236,221.20x = 41,984,812,518.76
  5. Step 5: Solve for x
    x = 41,984,812,518.76/236,221.20
  6. Step 6: Final answer
    x = 177,735.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.