Home / 129,518.63-194,269.02-79,606.43

Finding the Fourth Proportional to 129,518.63, 194,269.02 and 79,606.43

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Solution

The fourth proportional to 129,518.63, 194,269.02 and 79,606.43 is: 119,404.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,518.63 : 194,269.02 = 79,606.43 : x
  2. Step 2: Convert to fraction form
    129,518.63/194,269.02 = 79,606.43/x
  3. Step 3: Cross multiply
    129,518.63x = 194,269.02 × 79,606.43
  4. Step 4: Simplify right side
    129,518.63x = 15,465,062,170.45
  5. Step 5: Solve for x
    x = 15,465,062,170.45/129,518.63
  6. Step 6: Final answer
    x = 119,404.16

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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.