Home / 435,556.12-653,195.94-139,999

Finding the Fourth Proportional to 435,556.12, 653,195.94 and 139,999

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Solution

The fourth proportional to 435,556.12, 653,195.94 and 139,999 is: 209,954.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,556.12 : 653,195.94 = 139,999 : x
  2. Step 2: Convert to fraction form
    435,556.12/653,195.94 = 139,999/x
  3. Step 3: Cross multiply
    435,556.12x = 653,195.94 × 139,999
  4. Step 4: Simplify right side
    435,556.12x = 91,446,778,404.06
  5. Step 5: Solve for x
    x = 91,446,778,404.06/435,556.12
  6. Step 6: Final answer
    x = 209,954.07

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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.