Home / 123,846.12-170,908.90-67,258.60

Finding the Fourth Proportional to 123,846.12, 170,908.90 and 67,258.60

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Solution

The fourth proportional to 123,846.12, 170,908.90 and 67,258.60 is: 92,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,846.12 : 170,908.90 = 67,258.60 : x
  2. Step 2: Convert to fraction form
    123,846.12/170,908.90 = 67,258.60/x
  3. Step 3: Cross multiply
    123,846.12x = 170,908.90 × 67,258.60
  4. Step 4: Simplify right side
    123,846.12x = 11,495,093,341.54
  5. Step 5: Solve for x
    x = 11,495,093,341.54/123,846.12
  6. Step 6: Final answer
    x = 92,817.55

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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.