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Finding the Fourth Proportional to 123,813.36, 170,873.01 and 70,107.84

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Solution

The fourth proportional to 123,813.36, 170,873.01 and 70,107.84 is: 96,754.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,813.36 : 170,873.01 = 70,107.84 : x
  2. Step 2: Convert to fraction form
    123,813.36/170,873.01 = 70,107.84/x
  3. Step 3: Cross multiply
    123,813.36x = 170,873.01 × 70,107.84
  4. Step 4: Simplify right side
    123,813.36x = 11,979,537,645.40
  5. Step 5: Solve for x
    x = 11,979,537,645.40/123,813.36
  6. Step 6: Final answer
    x = 96,754.81

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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.