Home / 126,771.60-174,956.76-75,784.50

Finding the Fourth Proportional to 126,771.60, 174,956.76 and 75,784.50

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Solution

The fourth proportional to 126,771.60, 174,956.76 and 75,784.50 is: 104,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,771.60 : 174,956.76 = 75,784.50 : x
  2. Step 2: Convert to fraction form
    126,771.60/174,956.76 = 75,784.50/x
  3. Step 3: Cross multiply
    126,771.60x = 174,956.76 × 75,784.50
  4. Step 4: Simplify right side
    126,771.60x = 13,259,010,578.22
  5. Step 5: Solve for x
    x = 13,259,010,578.22/126,771.60
  6. Step 6: Final answer
    x = 104,589.75

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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.