Home / 126,050.90-189,076.35-112,272.80

Finding the Fourth Proportional to 126,050.90, 189,076.35 and 112,272.80

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Solution

The fourth proportional to 126,050.90, 189,076.35 and 112,272.80 is: 168,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,050.90 : 189,076.35 = 112,272.80 : x
  2. Step 2: Convert to fraction form
    126,050.90/189,076.35 = 112,272.80/x
  3. Step 3: Cross multiply
    126,050.90x = 189,076.35 × 112,272.80
  4. Step 4: Simplify right side
    126,050.90x = 21,228,131,228.28
  5. Step 5: Solve for x
    x = 21,228,131,228.28/126,050.90
  6. Step 6: Final answer
    x = 168,409.20

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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.