Home / 235,916.86-325,568.98-128,486.81

Finding the Fourth Proportional to 235,916.86, 325,568.98 and 128,486.81

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Solution

The fourth proportional to 235,916.86, 325,568.98 and 128,486.81 is: 177,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,916.86 : 325,568.98 = 128,486.81 : x
  2. Step 2: Convert to fraction form
    235,916.86/325,568.98 = 128,486.81/x
  3. Step 3: Cross multiply
    235,916.86x = 325,568.98 × 128,486.81
  4. Step 4: Simplify right side
    235,916.86x = 41,831,320,167.86
  5. Step 5: Solve for x
    x = 41,831,320,167.86/235,916.86
  6. Step 6: Final answer
    x = 177,313.82

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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.