Home / 260,100.89-390,151.34-73,112.39

Finding the Fourth Proportional to 260,100.89, 390,151.34 and 73,112.39

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Solution

The fourth proportional to 260,100.89, 390,151.34 and 73,112.39 is: 109,668.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,100.89 : 390,151.34 = 73,112.39 : x
  2. Step 2: Convert to fraction form
    260,100.89/390,151.34 = 73,112.39/x
  3. Step 3: Cross multiply
    260,100.89x = 390,151.34 × 73,112.39
  4. Step 4: Simplify right side
    260,100.89x = 28,524,897,538.92
  5. Step 5: Solve for x
    x = 28,524,897,538.92/260,100.89
  6. Step 6: Final answer
    x = 109,668.59

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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.