Home / 126,083.20-189,124.80-55,969.60

Finding the Fourth Proportional to 126,083.20, 189,124.80 and 55,969.60

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Solution

The fourth proportional to 126,083.20, 189,124.80 and 55,969.60 is: 83,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,083.20 : 189,124.80 = 55,969.60 : x
  2. Step 2: Convert to fraction form
    126,083.20/189,124.80 = 55,969.60/x
  3. Step 3: Cross multiply
    126,083.20x = 189,124.80 × 55,969.60
  4. Step 4: Simplify right side
    126,083.20x = 10,585,239,406.08
  5. Step 5: Solve for x
    x = 10,585,239,406.08/126,083.20
  6. Step 6: Final answer
    x = 83,954.40

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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.