Home / 155,456.10-214,529.73-91,797.96

Finding the Fourth Proportional to 155,456.10, 214,529.73 and 91,797.96

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Solution

The fourth proportional to 155,456.10, 214,529.73 and 91,797.96 is: 126,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,456.10 : 214,529.73 = 91,797.96 : x
  2. Step 2: Convert to fraction form
    155,456.10/214,529.73 = 91,797.96/x
  3. Step 3: Cross multiply
    155,456.10x = 214,529.73 × 91,797.96
  4. Step 4: Simplify right side
    155,456.10x = 19,693,391,573.35
  5. Step 5: Solve for x
    x = 19,693,391,573.35/155,456.10
  6. Step 6: Final answer
    x = 126,681.37

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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.