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Finding the Fourth Proportional to 129,604.39, 193,967.66 and 79,716.08

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Solution

The fourth proportional to 129,604.39, 193,967.66 and 79,716.08 is: 119,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,604.39 : 193,967.66 = 79,716.08 : x
  2. Step 2: Convert to fraction form
    129,604.39/193,967.66 = 79,716.08/x
  3. Step 3: Cross multiply
    129,604.39x = 193,967.66 × 79,716.08
  4. Step 4: Simplify right side
    129,604.39x = 15,462,342,186.18
  5. Step 5: Solve for x
    x = 15,462,342,186.18/129,604.39
  6. Step 6: Final answer
    x = 119,304.16

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1.5x scale

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.