Home / 129,738.06-194,354.64-73,407.69

Finding the Fourth Proportional to 129,738.06, 194,354.64 and 73,407.69

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Solution

The fourth proportional to 129,738.06, 194,354.64 and 73,407.69 is: 109,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,738.06 : 194,354.64 = 73,407.69 : x
  2. Step 2: Convert to fraction form
    129,738.06/194,354.64 = 73,407.69/x
  3. Step 3: Cross multiply
    129,738.06x = 194,354.64 × 73,407.69
  4. Step 4: Simplify right side
    129,738.06x = 14,267,125,163.18
  5. Step 5: Solve for x
    x = 14,267,125,163.18/129,738.06
  6. Step 6: Final answer
    x = 109,968.70

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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.