Home / 129,354.37-193,953.79-49,397.65

Finding the Fourth Proportional to 129,354.37, 193,953.79 and 49,397.65

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Solution

The fourth proportional to 129,354.37, 193,953.79 and 49,397.65 is: 74,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,354.37 : 193,953.79 = 49,397.65 : x
  2. Step 2: Convert to fraction form
    129,354.37/193,953.79 = 49,397.65/x
  3. Step 3: Cross multiply
    129,354.37x = 193,953.79 × 49,397.65
  4. Step 4: Simplify right side
    129,354.37x = 9,580,861,011.46
  5. Step 5: Solve for x
    x = 9,580,861,011.46/129,354.37
  6. Step 6: Final answer
    x = 74,066.78

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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.