Home / 128,997.23-193,421.36-50,019.20

Finding the Fourth Proportional to 128,997.23, 193,421.36 and 50,019.20

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Solution

The fourth proportional to 128,997.23, 193,421.36 and 50,019.20 is: 74,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,997.23 : 193,421.36 = 50,019.20 : x
  2. Step 2: Convert to fraction form
    128,997.23/193,421.36 = 50,019.20/x
  3. Step 3: Cross multiply
    128,997.23x = 193,421.36 × 50,019.20
  4. Step 4: Simplify right side
    128,997.23x = 9,674,780,677.69
  5. Step 5: Solve for x
    x = 9,674,780,677.69/128,997.23
  6. Step 6: Final answer
    x = 74,999.91

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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.