Home / 126,021.58-173,813.74-85,667.33

Finding the Fourth Proportional to 126,021.58, 173,813.74 and 85,667.33

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Solution

The fourth proportional to 126,021.58, 173,813.74 and 85,667.33 is: 118,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,021.58 : 173,813.74 = 85,667.33 : x
  2. Step 2: Convert to fraction form
    126,021.58/173,813.74 = 85,667.33/x
  3. Step 3: Cross multiply
    126,021.58x = 173,813.74 × 85,667.33
  4. Step 4: Simplify right side
    126,021.58x = 14,890,158,265.78
  5. Step 5: Solve for x
    x = 14,890,158,265.78/126,021.58
  6. Step 6: Final answer
    x = 118,155.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.