Home / 142,606.83-213,852.79-53,811.97

Finding the Fourth Proportional to 142,606.83, 213,852.79 and 53,811.97

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Solution

The fourth proportional to 142,606.83, 213,852.79 and 53,811.97 is: 80,696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,606.83 : 213,852.79 = 53,811.97 : x
  2. Step 2: Convert to fraction form
    142,606.83/213,852.79 = 53,811.97/x
  3. Step 3: Cross multiply
    142,606.83x = 213,852.79 × 53,811.97
  4. Step 4: Simplify right side
    142,606.83x = 11,507,839,919.90
  5. Step 5: Solve for x
    x = 11,507,839,919.90/142,606.83
  6. Step 6: Final answer
    x = 80,696.27

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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.