Home / 120,813.30-166,744.08-69,819.03

Finding the Fourth Proportional to 120,813.30, 166,744.08 and 69,819.03

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Solution

The fourth proportional to 120,813.30, 166,744.08 and 69,819.03 is: 96,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,813.30 : 166,744.08 = 69,819.03 : x
  2. Step 2: Convert to fraction form
    120,813.30/166,744.08 = 69,819.03/x
  3. Step 3: Cross multiply
    120,813.30x = 166,744.08 × 69,819.03
  4. Step 4: Simplify right side
    120,813.30x = 11,641,909,923.84
  5. Step 5: Solve for x
    x = 11,641,909,923.84/120,813.30
  6. Step 6: Final answer
    x = 96,362.82

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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.