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Finding the Fourth Proportional to 129,709.84, 193,971.84 and 94,290.16

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Solution

The fourth proportional to 129,709.84, 193,971.84 and 94,290.16 is: 141,004.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,709.84 : 193,971.84 = 94,290.16 : x
  2. Step 2: Convert to fraction form
    129,709.84/193,971.84 = 94,290.16/x
  3. Step 3: Cross multiply
    129,709.84x = 193,971.84 × 94,290.16
  4. Step 4: Simplify right side
    129,709.84x = 18,289,635,829.09
  5. Step 5: Solve for x
    x = 18,289,635,829.09/129,709.84
  6. Step 6: Final answer
    x = 141,004.23

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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.