Home / 125,109.96-187,581.24-68,976.96

Finding the Fourth Proportional to 125,109.96, 187,581.24 and 68,976.96

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Solution

The fourth proportional to 125,109.96, 187,581.24 and 68,976.96 is: 103,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,109.96 : 187,581.24 = 68,976.96 : x
  2. Step 2: Convert to fraction form
    125,109.96/187,581.24 = 68,976.96/x
  3. Step 3: Cross multiply
    125,109.96x = 187,581.24 × 68,976.96
  4. Step 4: Simplify right side
    125,109.96x = 12,938,783,688.23
  5. Step 5: Solve for x
    x = 12,938,783,688.23/125,109.96
  6. Step 6: Final answer
    x = 103,419.29

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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.