Home / 166,721.31-230,075.42-91,269.81

Finding the Fourth Proportional to 166,721.31, 230,075.42 and 91,269.81

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Solution

The fourth proportional to 166,721.31, 230,075.42 and 91,269.81 is: 125,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,721.31 : 230,075.42 = 91,269.81 : x
  2. Step 2: Convert to fraction form
    166,721.31/230,075.42 = 91,269.81/x
  3. Step 3: Cross multiply
    166,721.31x = 230,075.42 × 91,269.81
  4. Step 4: Simplify right side
    166,721.31x = 20,998,939,869.07
  5. Step 5: Solve for x
    x = 20,998,939,869.07/166,721.31
  6. Step 6: Final answer
    x = 125,952.34

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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.