Home / 128,997.58-193,421.64-50,019.34

Finding the Fourth Proportional to 128,997.58, 193,421.64 and 50,019.34

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Solution

The fourth proportional to 128,997.58, 193,421.64 and 50,019.34 is: 75,000.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,997.58 : 193,421.64 = 50,019.34 : x
  2. Step 2: Convert to fraction form
    128,997.58/193,421.64 = 50,019.34/x
  3. Step 3: Cross multiply
    128,997.58x = 193,421.64 × 50,019.34
  4. Step 4: Simplify right side
    128,997.58x = 9,674,822,774.52
  5. Step 5: Solve for x
    x = 9,674,822,774.52/128,997.58
  6. Step 6: Final answer
    x = 75,000.03

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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.