Home / 123,860.01-170,930.85-70,143.87

Finding the Fourth Proportional to 123,860.01, 170,930.85 and 70,143.87

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Solution

The fourth proportional to 123,860.01, 170,930.85 and 70,143.87 is: 96,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,860.01 : 170,930.85 = 70,143.87 : x
  2. Step 2: Convert to fraction form
    123,860.01/170,930.85 = 70,143.87/x
  3. Step 3: Cross multiply
    123,860.01x = 170,930.85 × 70,143.87
  4. Step 4: Simplify right side
    123,860.01x = 11,989,751,321.39
  5. Step 5: Solve for x
    x = 11,989,751,321.39/123,860.01
  6. Step 6: Final answer
    x = 96,800.83

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1.5x scale

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.