Home / 140,027.92-193,129.32-89,731.60

Finding the Fourth Proportional to 140,027.92, 193,129.32 and 89,731.60

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Solution

The fourth proportional to 140,027.92, 193,129.32 and 89,731.60 is: 123,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,027.92 : 193,129.32 = 89,731.60 : x
  2. Step 2: Convert to fraction form
    140,027.92/193,129.32 = 89,731.60/x
  3. Step 3: Cross multiply
    140,027.92x = 193,129.32 × 89,731.60
  4. Step 4: Simplify right side
    140,027.92x = 17,329,802,890.51
  5. Step 5: Solve for x
    x = 17,329,802,890.51/140,027.92
  6. Step 6: Final answer
    x = 123,759.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.