Home / 192,210.80-288,316.20-125,855.60

Finding the Fourth Proportional to 192,210.80, 288,316.20 and 125,855.60

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Solution

The fourth proportional to 192,210.80, 288,316.20 and 125,855.60 is: 188,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,210.80 : 288,316.20 = 125,855.60 : x
  2. Step 2: Convert to fraction form
    192,210.80/288,316.20 = 125,855.60/x
  3. Step 3: Cross multiply
    192,210.80x = 288,316.20 × 125,855.60
  4. Step 4: Simplify right side
    192,210.80x = 36,286,208,340.72
  5. Step 5: Solve for x
    x = 36,286,208,340.72/192,210.80
  6. Step 6: Final answer
    x = 188,783.40

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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.