Home / 123,236.79-170,068.42-69,521.64

Finding the Fourth Proportional to 123,236.79, 170,068.42 and 69,521.64

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Solution

The fourth proportional to 123,236.79, 170,068.42 and 69,521.64 is: 95,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,236.79 : 170,068.42 = 69,521.64 : x
  2. Step 2: Convert to fraction form
    123,236.79/170,068.42 = 69,521.64/x
  3. Step 3: Cross multiply
    123,236.79x = 170,068.42 × 69,521.64
  4. Step 4: Simplify right side
    123,236.79x = 11,823,434,272.66
  5. Step 5: Solve for x
    x = 11,823,434,272.66/123,236.79
  6. Step 6: Final answer
    x = 95,940.79

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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.