Home / 123,400.76-170,294.24-66,813.36

Finding the Fourth Proportional to 123,400.76, 170,294.24 and 66,813.36

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Solution

The fourth proportional to 123,400.76, 170,294.24 and 66,813.36 is: 92,203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,400.76 : 170,294.24 = 66,813.36 : x
  2. Step 2: Convert to fraction form
    123,400.76/170,294.24 = 66,813.36/x
  3. Step 3: Cross multiply
    123,400.76x = 170,294.24 × 66,813.36
  4. Step 4: Simplify right side
    123,400.76x = 11,377,930,363.05
  5. Step 5: Solve for x
    x = 11,377,930,363.05/123,400.76
  6. Step 6: Final answer
    x = 92,203.08

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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.