Home / 123,384.10-170,270.10-66,795.46

Finding the Fourth Proportional to 123,384.10, 170,270.10 and 66,795.46

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Solution

The fourth proportional to 123,384.10, 170,270.10 and 66,795.46 is: 92,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,384.10 : 170,270.10 = 66,795.46 : x
  2. Step 2: Convert to fraction form
    123,384.10/170,270.10 = 66,795.46/x
  3. Step 3: Cross multiply
    123,384.10x = 170,270.10 × 66,795.46
  4. Step 4: Simplify right side
    123,384.10x = 11,373,269,653.75
  5. Step 5: Solve for x
    x = 11,373,269,653.75/123,384.10
  6. Step 6: Final answer
    x = 92,177.76

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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.