Home / 128,202.36-192,268.98-58,011

Finding the Fourth Proportional to 128,202.36, 192,268.98 and 58,011

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Solution

The fourth proportional to 128,202.36, 192,268.98 and 58,011 is: 87,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,202.36 : 192,268.98 = 58,011 : x
  2. Step 2: Convert to fraction form
    128,202.36/192,268.98 = 58,011/x
  3. Step 3: Cross multiply
    128,202.36x = 192,268.98 × 58,011
  4. Step 4: Simplify right side
    128,202.36x = 11,153,715,798.78
  5. Step 5: Solve for x
    x = 11,153,715,798.78/128,202.36
  6. Step 6: Final answer
    x = 87,000.86

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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.