Home / 141,694.07-195,546.71-78,031.87

Finding the Fourth Proportional to 141,694.07, 195,546.71 and 78,031.87

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Solution

The fourth proportional to 141,694.07, 195,546.71 and 78,031.87 is: 107,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,694.07 : 195,546.71 = 78,031.87 : x
  2. Step 2: Convert to fraction form
    141,694.07/195,546.71 = 78,031.87/x
  3. Step 3: Cross multiply
    141,694.07x = 195,546.71 × 78,031.87
  4. Step 4: Simplify right side
    141,694.07x = 15,258,875,453.65
  5. Step 5: Solve for x
    x = 15,258,875,453.65/141,694.07
  6. Step 6: Final answer
    x = 107,688.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.