Home / 123,553.20-170,506.40-69,838.41

Finding the Fourth Proportional to 123,553.20, 170,506.40 and 69,838.41

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Solution

The fourth proportional to 123,553.20, 170,506.40 and 69,838.41 is: 96,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,553.20 : 170,506.40 = 69,838.41 : x
  2. Step 2: Convert to fraction form
    123,553.20/170,506.40 = 69,838.41/x
  3. Step 3: Cross multiply
    123,553.20x = 170,506.40 × 69,838.41
  4. Step 4: Simplify right side
    123,553.20x = 11,907,895,521.63
  5. Step 5: Solve for x
    x = 11,907,895,521.63/123,553.20
  6. Step 6: Final answer
    x = 96,378.69

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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.