Home / 129,270.35-193,504.57-69,958.91

Finding the Fourth Proportional to 129,270.35, 193,504.57 and 69,958.91

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Solution

The fourth proportional to 129,270.35, 193,504.57 and 69,958.91 is: 104,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,270.35 : 193,504.57 = 69,958.91 : x
  2. Step 2: Convert to fraction form
    129,270.35/193,504.57 = 69,958.91/x
  3. Step 3: Cross multiply
    129,270.35x = 193,504.57 × 69,958.91
  4. Step 4: Simplify right side
    129,270.35x = 13,537,369,106.08
  5. Step 5: Solve for x
    x = 13,537,369,106.08/129,270.35
  6. Step 6: Final answer
    x = 104,721.38

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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.