Home / 147,217.79-203,166.78-83,561.51

Finding the Fourth Proportional to 147,217.79, 203,166.78 and 83,561.51

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Solution

The fourth proportional to 147,217.79, 203,166.78 and 83,561.51 is: 115,318.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,217.79 : 203,166.78 = 83,561.51 : x
  2. Step 2: Convert to fraction form
    147,217.79/203,166.78 = 83,561.51/x
  3. Step 3: Cross multiply
    147,217.79x = 203,166.78 × 83,561.51
  4. Step 4: Simplify right side
    147,217.79x = 16,976,922,918.64
  5. Step 5: Solve for x
    x = 16,976,922,918.64/147,217.79
  6. Step 6: Final answer
    x = 115,318.42

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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.