Home / 128,010.12-191,865.51-96,318.44

Finding the Fourth Proportional to 128,010.12, 191,865.51 and 96,318.44

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Solution

The fourth proportional to 128,010.12, 191,865.51 and 96,318.44 is: 144,365.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,010.12 : 191,865.51 = 96,318.44 : x
  2. Step 2: Convert to fraction form
    128,010.12/191,865.51 = 96,318.44/x
  3. Step 3: Cross multiply
    128,010.12x = 191,865.51 × 96,318.44
  4. Step 4: Simplify right side
    128,010.12x = 18,480,186,912.79
  5. Step 5: Solve for x
    x = 18,480,186,912.79/128,010.12
  6. Step 6: Final answer
    x = 144,365.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.