Home / 141,429.49-195,179.71-87,731.81

Finding the Fourth Proportional to 141,429.49, 195,179.71 and 87,731.81

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Solution

The fourth proportional to 141,429.49, 195,179.71 and 87,731.81 is: 121,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,429.49 : 195,179.71 = 87,731.81 : x
  2. Step 2: Convert to fraction form
    141,429.49/195,179.71 = 87,731.81/x
  3. Step 3: Cross multiply
    141,429.49x = 195,179.71 × 87,731.81
  4. Step 4: Simplify right side
    141,429.49x = 17,123,468,257.68
  5. Step 5: Solve for x
    x = 17,123,468,257.68/141,429.49
  6. Step 6: Final answer
    x = 121,074.24

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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.