Home / 114,957,781.40-172,436,672.10-74,143,112.60

Finding the Fourth Proportional to 114,957,781.40, 172,436,672.10 and 74,143,112.60

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Solution

The fourth proportional to 114,957,781.40, 172,436,672.10 and 74,143,112.60 is: 111,214,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,957,781.40 : 172,436,672.10 = 74,143,112.60 : x
  2. Step 2: Convert to fraction form
    114,957,781.40/172,436,672.10 = 74,143,112.60/x
  3. Step 3: Cross multiply
    114,957,781.40x = 172,436,672.10 × 74,143,112.60
  4. Step 4: Simplify right side
    114,957,781.40x = 12,784,991,595,879,576
  5. Step 5: Solve for x
    x = 12,784,991,595,879,576/114,957,781.40
  6. Step 6: Final answer
    x = 111,214,668.90

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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.