Home / 192,316.80-288,086.40-129,331.20

Finding the Fourth Proportional to 192,316.80, 288,086.40 and 129,331.20

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Solution

The fourth proportional to 192,316.80, 288,086.40 and 129,331.20 is: 193,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,316.80 : 288,086.40 = 129,331.20 : x
  2. Step 2: Convert to fraction form
    192,316.80/288,086.40 = 129,331.20/x
  3. Step 3: Cross multiply
    192,316.80x = 288,086.40 × 129,331.20
  4. Step 4: Simplify right side
    192,316.80x = 37,258,559,815.68
  5. Step 5: Solve for x
    x = 37,258,559,815.68/192,316.80
  6. Step 6: Final answer
    x = 193,735.34

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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.