Home / 128,669.75-193,010.78-62,165.82

Finding the Fourth Proportional to 128,669.75, 193,010.78 and 62,165.82

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Solution

The fourth proportional to 128,669.75, 193,010.78 and 62,165.82 is: 93,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,669.75 : 193,010.78 = 62,165.82 : x
  2. Step 2: Convert to fraction form
    128,669.75/193,010.78 = 62,165.82/x
  3. Step 3: Cross multiply
    128,669.75x = 193,010.78 × 62,165.82
  4. Step 4: Simplify right side
    128,669.75x = 11,998,672,798.51
  5. Step 5: Solve for x
    x = 11,998,672,798.51/128,669.75
  6. Step 6: Final answer
    x = 93,251.70

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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.