Home / 129,869.63-194,823.92-45,614.94

Finding the Fourth Proportional to 129,869.63, 194,823.92 and 45,614.94

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Solution

The fourth proportional to 129,869.63, 194,823.92 and 45,614.94 is: 68,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,869.63 : 194,823.92 = 45,614.94 : x
  2. Step 2: Convert to fraction form
    129,869.63/194,823.92 = 45,614.94/x
  3. Step 3: Cross multiply
    129,869.63x = 194,823.92 × 45,614.94
  4. Step 4: Simplify right side
    129,869.63x = 8,886,881,193.29
  5. Step 5: Solve for x
    x = 8,886,881,193.29/129,869.63
  6. Step 6: Final answer
    x = 68,429.25

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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.