Home / 81,097.12-111,666.24-73,493.92

Finding the Fourth Proportional to 81,097.12, 111,666.24 and 73,493.92

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Solution

The fourth proportional to 81,097.12, 111,666.24 and 73,493.92 is: 101,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,097.12 : 111,666.24 = 73,493.92 : x
  2. Step 2: Convert to fraction form
    81,097.12/111,666.24 = 73,493.92/x
  3. Step 3: Cross multiply
    81,097.12x = 111,666.24 × 73,493.92
  4. Step 4: Simplify right side
    81,097.12x = 8,206,789,709.26
  5. Step 5: Solve for x
    x = 8,206,789,709.26/81,097.12
  6. Step 6: Final answer
    x = 101,197.05

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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.