Home / 125,395.38-188,150.31-68,487.21

Finding the Fourth Proportional to 125,395.38, 188,150.31 and 68,487.21

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Solution

The fourth proportional to 125,395.38, 188,150.31 and 68,487.21 is: 102,762.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,395.38 : 188,150.31 = 68,487.21 : x
  2. Step 2: Convert to fraction form
    125,395.38/188,150.31 = 68,487.21/x
  3. Step 3: Cross multiply
    125,395.38x = 188,150.31 × 68,487.21
  4. Step 4: Simplify right side
    125,395.38x = 12,885,889,792.54
  5. Step 5: Solve for x
    x = 12,885,889,792.54/125,395.38
  6. Step 6: Final answer
    x = 102,762.08

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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.