Home / 236,109.71-325,821.90-128,677.43

Finding the Fourth Proportional to 236,109.71, 325,821.90 and 128,677.43

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Solution

The fourth proportional to 236,109.71, 325,821.90 and 128,677.43 is: 177,569.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,109.71 : 325,821.90 = 128,677.43 : x
  2. Step 2: Convert to fraction form
    236,109.71/325,821.90 = 128,677.43/x
  3. Step 3: Cross multiply
    236,109.71x = 325,821.90 × 128,677.43
  4. Step 4: Simplify right side
    236,109.71x = 41,925,926,026.81
  5. Step 5: Solve for x
    x = 41,925,926,026.81/236,109.71
  6. Step 6: Final answer
    x = 177,569.68

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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.