Home / 139,553.10-192,581.48-75,889.53

Finding the Fourth Proportional to 139,553.10, 192,581.48 and 75,889.53

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Solution

The fourth proportional to 139,553.10, 192,581.48 and 75,889.53 is: 104,726.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,553.10 : 192,581.48 = 75,889.53 : x
  2. Step 2: Convert to fraction form
    139,553.10/192,581.48 = 75,889.53/x
  3. Step 3: Cross multiply
    139,553.10x = 192,581.48 × 75,889.53
  4. Step 4: Simplify right side
    139,553.10x = 14,614,918,346.64
  5. Step 5: Solve for x
    x = 14,614,918,346.64/139,553.10
  6. Step 6: Final answer
    x = 104,726.57

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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.