Home / 177,520.31-266,362.80-77,667.36

Finding the Fourth Proportional to 177,520.31, 266,362.80 and 77,667.36

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Solution

The fourth proportional to 177,520.31, 266,362.80 and 77,667.36 is: 116,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,520.31 : 266,362.80 = 77,667.36 : x
  2. Step 2: Convert to fraction form
    177,520.31/266,362.80 = 77,667.36/x
  3. Step 3: Cross multiply
    177,520.31x = 266,362.80 × 77,667.36
  4. Step 4: Simplify right side
    177,520.31x = 20,687,694,188.09
  5. Step 5: Solve for x
    x = 20,687,694,188.09/177,520.31
  6. Step 6: Final answer
    x = 116,537.06

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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.