Home / 128,822.90-177,777.35-96,500.25

Finding the Fourth Proportional to 128,822.90, 177,777.35 and 96,500.25

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Solution

The fourth proportional to 128,822.90, 177,777.35 and 96,500.25 is: 133,171.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,822.90 : 177,777.35 = 96,500.25 : x
  2. Step 2: Convert to fraction form
    128,822.90/177,777.35 = 96,500.25/x
  3. Step 3: Cross multiply
    128,822.90x = 177,777.35 × 96,500.25
  4. Step 4: Simplify right side
    128,822.90x = 17,155,558,236.84
  5. Step 5: Solve for x
    x = 17,155,558,236.84/128,822.90
  6. Step 6: Final answer
    x = 133,171.66

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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.