Home / 126,911.20-190,366.80-33,426.40

Finding the Fourth Proportional to 126,911.20, 190,366.80 and 33,426.40

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Solution

The fourth proportional to 126,911.20, 190,366.80 and 33,426.40 is: 50,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,911.20 : 190,366.80 = 33,426.40 : x
  2. Step 2: Convert to fraction form
    126,911.20/190,366.80 = 33,426.40/x
  3. Step 3: Cross multiply
    126,911.20x = 190,366.80 × 33,426.40
  4. Step 4: Simplify right side
    126,911.20x = 6,363,276,803.52
  5. Step 5: Solve for x
    x = 6,363,276,803.52/126,911.20
  6. Step 6: Final answer
    x = 50,139.60

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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.