Home / 128,273.24-177,066.45-114,820.76

Finding the Fourth Proportional to 128,273.24, 177,066.45 and 114,820.76

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Solution

The fourth proportional to 128,273.24, 177,066.45 and 114,820.76 is: 158,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,273.24 : 177,066.45 = 114,820.76 : x
  2. Step 2: Convert to fraction form
    128,273.24/177,066.45 = 114,820.76/x
  3. Step 3: Cross multiply
    128,273.24x = 177,066.45 × 114,820.76
  4. Step 4: Simplify right side
    128,273.24x = 20,330,903,474.17
  5. Step 5: Solve for x
    x = 20,330,903,474.17/128,273.24
  6. Step 6: Final answer
    x = 158,496.85

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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.