Home / 128,826.30-193,239.45-35,331.90

Finding the Fourth Proportional to 128,826.30, 193,239.45 and 35,331.90

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Solution

The fourth proportional to 128,826.30, 193,239.45 and 35,331.90 is: 52,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,826.30 : 193,239.45 = 35,331.90 : x
  2. Step 2: Convert to fraction form
    128,826.30/193,239.45 = 35,331.90/x
  3. Step 3: Cross multiply
    128,826.30x = 193,239.45 × 35,331.90
  4. Step 4: Simplify right side
    128,826.30x = 6,827,516,923.46
  5. Step 5: Solve for x
    x = 6,827,516,923.46/128,826.30
  6. Step 6: Final answer
    x = 52,997.85

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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.