Home / 126,813.90-190,290.87-70,685.61

Finding the Fourth Proportional to 126,813.90, 190,290.87 and 70,685.61

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Solution

The fourth proportional to 126,813.90, 190,290.87 and 70,685.61 is: 106,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,813.90 : 190,290.87 = 70,685.61 : x
  2. Step 2: Convert to fraction form
    126,813.90/190,290.87 = 70,685.61/x
  3. Step 3: Cross multiply
    126,813.90x = 190,290.87 × 70,685.61
  4. Step 4: Simplify right side
    126,813.90x = 13,450,826,580.18
  5. Step 5: Solve for x
    x = 13,450,826,580.18/126,813.90
  6. Step 6: Final answer
    x = 106,067.44

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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.