Home / 123,378.30-170,272.11-69,676.38

Finding the Fourth Proportional to 123,378.30, 170,272.11 and 69,676.38

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Solution

The fourth proportional to 123,378.30, 170,272.11 and 69,676.38 is: 96,159.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,378.30 : 170,272.11 = 69,676.38 : x
  2. Step 2: Convert to fraction form
    123,378.30/170,272.11 = 69,676.38/x
  3. Step 3: Cross multiply
    123,378.30x = 170,272.11 × 69,676.38
  4. Step 4: Simplify right side
    123,378.30x = 11,863,944,239.76
  5. Step 5: Solve for x
    x = 11,863,944,239.76/123,378.30
  6. Step 6: Final answer
    x = 96,159.08

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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.