Home / 123,334.76-170,086.44-81,868.40

Finding the Fourth Proportional to 123,334.76, 170,086.44 and 81,868.40

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Solution

The fourth proportional to 123,334.76, 170,086.44 and 81,868.40 is: 112,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,334.76 : 170,086.44 = 81,868.40 : x
  2. Step 2: Convert to fraction form
    123,334.76/170,086.44 = 81,868.40/x
  3. Step 3: Cross multiply
    123,334.76x = 170,086.44 × 81,868.40
  4. Step 4: Simplify right side
    123,334.76x = 13,924,704,704.50
  5. Step 5: Solve for x
    x = 13,924,704,704.50/123,334.76
  6. Step 6: Final answer
    x = 112,901.71

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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.