Home / 260,100.86-390,151.26-73,112.36

Finding the Fourth Proportional to 260,100.86, 390,151.26 and 73,112.36

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Solution

The fourth proportional to 260,100.86, 390,151.26 and 73,112.36 is: 109,668.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,100.86 : 390,151.26 = 73,112.36 : x
  2. Step 2: Convert to fraction form
    260,100.86/390,151.26 = 73,112.36/x
  3. Step 3: Cross multiply
    260,100.86x = 390,151.26 × 73,112.36
  4. Step 4: Simplify right side
    260,100.86x = 28,524,877,424.82
  5. Step 5: Solve for x
    x = 28,524,877,424.82/260,100.86
  6. Step 6: Final answer
    x = 109,668.53

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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.