Home / 129,538.31-194,314.41-40,798.76

Finding the Fourth Proportional to 129,538.31, 194,314.41 and 40,798.76

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Solution

The fourth proportional to 129,538.31, 194,314.41 and 40,798.76 is: 61,200.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,538.31 : 194,314.41 = 40,798.76 : x
  2. Step 2: Convert to fraction form
    129,538.31/194,314.41 = 40,798.76/x
  3. Step 3: Cross multiply
    129,538.31x = 194,314.41 × 40,798.76
  4. Step 4: Simplify right side
    129,538.31x = 7,927,786,006.56
  5. Step 5: Solve for x
    x = 7,927,786,006.56/129,538.31
  6. Step 6: Final answer
    x = 61,200.32

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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.