Home / 128,628.33-177,350.27-94,533

Finding the Fourth Proportional to 128,628.33, 177,350.27 and 94,533

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Solution

The fourth proportional to 128,628.33, 177,350.27 and 94,533 is: 130,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,628.33 : 177,350.27 = 94,533 : x
  2. Step 2: Convert to fraction form
    128,628.33/177,350.27 = 94,533/x
  3. Step 3: Cross multiply
    128,628.33x = 177,350.27 × 94,533
  4. Step 4: Simplify right side
    128,628.33x = 16,765,452,601.25
  5. Step 5: Solve for x
    x = 16,765,452,601.25/128,628.33
  6. Step 6: Final answer
    x = 130,340.28

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1.5x scale

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.