Home / 129,631.59-194,313.84-49,647.74

Finding the Fourth Proportional to 129,631.59, 194,313.84 and 49,647.74

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Solution

The fourth proportional to 129,631.59, 194,313.84 and 49,647.74 is: 74,420.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,631.59 : 194,313.84 = 49,647.74 : x
  2. Step 2: Convert to fraction form
    129,631.59/194,313.84 = 49,647.74/x
  3. Step 3: Cross multiply
    129,631.59x = 194,313.84 × 49,647.74
  4. Step 4: Simplify right side
    129,631.59x = 9,647,241,848.97
  5. Step 5: Solve for x
    x = 9,647,241,848.97/129,631.59
  6. Step 6: Final answer
    x = 74,420.45

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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.