Home / 128,629.33-177,351.64-94,534

Finding the Fourth Proportional to 128,629.33, 177,351.64 and 94,534

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Solution

The fourth proportional to 128,629.33, 177,351.64 and 94,534 is: 130,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,629.33 : 177,351.64 = 94,534 : x
  2. Step 2: Convert to fraction form
    128,629.33/177,351.64 = 94,534/x
  3. Step 3: Cross multiply
    128,629.33x = 177,351.64 × 94,534
  4. Step 4: Simplify right side
    128,629.33x = 16,765,759,935.76
  5. Step 5: Solve for x
    x = 16,765,759,935.76/128,629.33
  6. Step 6: Final answer
    x = 130,341.66

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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.