Home / 139,669.56-192,744-76,005.96

Finding the Fourth Proportional to 139,669.56, 192,744 and 76,005.96

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Solution

The fourth proportional to 139,669.56, 192,744 and 76,005.96 is: 104,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,669.56 : 192,744 = 76,005.96 : x
  2. Step 2: Convert to fraction form
    139,669.56/192,744 = 76,005.96/x
  3. Step 3: Cross multiply
    139,669.56x = 192,744 × 76,005.96
  4. Step 4: Simplify right side
    139,669.56x = 14,649,692,754.24
  5. Step 5: Solve for x
    x = 14,649,692,754.24/139,669.56
  6. Step 6: Final answer
    x = 104,888.23

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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.