Home / 142,785.54-196,954.62-91,864.62

Finding the Fourth Proportional to 142,785.54, 196,954.62 and 91,864.62

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Solution

The fourth proportional to 142,785.54, 196,954.62 and 91,864.62 is: 126,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,785.54 : 196,954.62 = 91,864.62 : x
  2. Step 2: Convert to fraction form
    142,785.54/196,954.62 = 91,864.62/x
  3. Step 3: Cross multiply
    142,785.54x = 196,954.62 × 91,864.62
  4. Step 4: Simplify right side
    142,785.54x = 18,093,161,323.54
  5. Step 5: Solve for x
    x = 18,093,161,323.54/142,785.54
  6. Step 6: Final answer
    x = 126,715.64

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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.