Home / 125,998.20-188,997.30-51,154.20

Finding the Fourth Proportional to 125,998.20, 188,997.30 and 51,154.20

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Solution

The fourth proportional to 125,998.20, 188,997.30 and 51,154.20 is: 76,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,998.20 : 188,997.30 = 51,154.20 : x
  2. Step 2: Convert to fraction form
    125,998.20/188,997.30 = 51,154.20/x
  3. Step 3: Cross multiply
    125,998.20x = 188,997.30 × 51,154.20
  4. Step 4: Simplify right side
    125,998.20x = 9,668,005,683.66
  5. Step 5: Solve for x
    x = 9,668,005,683.66/125,998.20
  6. Step 6: Final answer
    x = 76,731.30

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1.5x scale

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.