Home / 219,971.94-303,524.31-128,110.65

Finding the Fourth Proportional to 219,971.94, 303,524.31 and 128,110.65

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Solution

The fourth proportional to 219,971.94, 303,524.31 and 128,110.65 is: 176,771.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,971.94 : 303,524.31 = 128,110.65 : x
  2. Step 2: Convert to fraction form
    219,971.94/303,524.31 = 128,110.65/x
  3. Step 3: Cross multiply
    219,971.94x = 303,524.31 × 128,110.65
  4. Step 4: Simplify right side
    219,971.94x = 38,884,696,644.90
  5. Step 5: Solve for x
    x = 38,884,696,644.90/219,971.94
  6. Step 6: Final answer
    x = 176,771.17

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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.