Home / 123,678.24-170,676.03-69,962.12

Finding the Fourth Proportional to 123,678.24, 170,676.03 and 69,962.12

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Solution

The fourth proportional to 123,678.24, 170,676.03 and 69,962.12 is: 96,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,678.24 : 170,676.03 = 69,962.12 : x
  2. Step 2: Convert to fraction form
    123,678.24/170,676.03 = 69,962.12/x
  3. Step 3: Cross multiply
    123,678.24x = 170,676.03 × 69,962.12
  4. Step 4: Simplify right side
    123,678.24x = 11,940,856,891.98
  5. Step 5: Solve for x
    x = 11,940,856,891.98/123,678.24
  6. Step 6: Final answer
    x = 96,547.76

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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.