Home / 123,905.66-170,998.28-70,191.12

Finding the Fourth Proportional to 123,905.66, 170,998.28 and 70,191.12

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Solution

The fourth proportional to 123,905.66, 170,998.28 and 70,191.12 is: 96,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,905.66 : 170,998.28 = 70,191.12 : x
  2. Step 2: Convert to fraction form
    123,905.66/170,998.28 = 70,191.12/x
  3. Step 3: Cross multiply
    123,905.66x = 170,998.28 × 70,191.12
  4. Step 4: Simplify right side
    123,905.66x = 12,002,560,440.32
  5. Step 5: Solve for x
    x = 12,002,560,440.32/123,905.66
  6. Step 6: Final answer
    x = 96,868.54

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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.