Home / 236,724.80-355,087.20-126,132.80

Finding the Fourth Proportional to 236,724.80, 355,087.20 and 126,132.80

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Solution

The fourth proportional to 236,724.80, 355,087.20 and 126,132.80 is: 189,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,724.80 : 355,087.20 = 126,132.80 : x
  2. Step 2: Convert to fraction form
    236,724.80/355,087.20 = 126,132.80/x
  3. Step 3: Cross multiply
    236,724.80x = 355,087.20 × 126,132.80
  4. Step 4: Simplify right side
    236,724.80x = 44,788,142,780.16
  5. Step 5: Solve for x
    x = 44,788,142,780.16/236,724.80
  6. Step 6: Final answer
    x = 189,199.20

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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.