Home / 125,116.20-187,674.30-111,637.80

Finding the Fourth Proportional to 125,116.20, 187,674.30 and 111,637.80

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Solution

The fourth proportional to 125,116.20, 187,674.30 and 111,637.80 is: 167,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,116.20 : 187,674.30 = 111,637.80 : x
  2. Step 2: Convert to fraction form
    125,116.20/187,674.30 = 111,637.80/x
  3. Step 3: Cross multiply
    125,116.20x = 187,674.30 × 111,637.80
  4. Step 4: Simplify right side
    125,116.20x = 20,951,545,968.54
  5. Step 5: Solve for x
    x = 20,951,545,968.54/125,116.20
  6. Step 6: Final answer
    x = 167,456.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.