Home / 128,285.24-177,083.01-114,832.76

Finding the Fourth Proportional to 128,285.24, 177,083.01 and 114,832.76

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Solution

The fourth proportional to 128,285.24, 177,083.01 and 114,832.76 is: 158,513.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,285.24 : 177,083.01 = 114,832.76 : x
  2. Step 2: Convert to fraction form
    128,285.24/177,083.01 = 114,832.76/x
  3. Step 3: Cross multiply
    128,285.24x = 177,083.01 × 114,832.76
  4. Step 4: Simplify right side
    128,285.24x = 20,334,929,901.99
  5. Step 5: Solve for x
    x = 20,334,929,901.99/128,285.24
  6. Step 6: Final answer
    x = 158,513.41

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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.