Home / 124,782,002.56-172,141,136.04-80,743,217.86

Finding the Fourth Proportional to 124,782,002.56, 172,141,136.04 and 80,743,217.86

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Solution

The fourth proportional to 124,782,002.56, 172,141,136.04 and 80,743,217.86 is: 111,388,092.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,782,002.56 : 172,141,136.04 = 80,743,217.86 : x
  2. Step 2: Convert to fraction form
    124,782,002.56/172,141,136.04 = 80,743,217.86/x
  3. Step 3: Cross multiply
    124,782,002.56x = 172,141,136.04 × 80,743,217.86
  4. Step 4: Simplify right side
    124,782,002.56x = 13,899,229,249,945,616
  5. Step 5: Solve for x
    x = 13,899,229,249,945,616/124,782,002.56
  6. Step 6: Final answer
    x = 111,388,092.55

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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.