Home / 260,136.48-390,204.86-73,147.98

Finding the Fourth Proportional to 260,136.48, 390,204.86 and 73,147.98

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Solution

The fourth proportional to 260,136.48, 390,204.86 and 73,147.98 is: 109,722.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,136.48 : 390,204.86 = 73,147.98 : x
  2. Step 2: Convert to fraction form
    260,136.48/390,204.86 = 73,147.98/x
  3. Step 3: Cross multiply
    260,136.48x = 390,204.86 × 73,147.98
  4. Step 4: Simplify right side
    260,136.48x = 28,542,697,295.18
  5. Step 5: Solve for x
    x = 28,542,697,295.18/260,136.48
  6. Step 6: Final answer
    x = 109,722.01

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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.