Home / 172,032.28-258,132.96-77,329.37

Finding the Fourth Proportional to 172,032.28, 258,132.96 and 77,329.37

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Solution

The fourth proportional to 172,032.28, 258,132.96 and 77,329.37 is: 116,032.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,032.28 : 258,132.96 = 77,329.37 : x
  2. Step 2: Convert to fraction form
    172,032.28/258,132.96 = 77,329.37/x
  3. Step 3: Cross multiply
    172,032.28x = 258,132.96 × 77,329.37
  4. Step 4: Simplify right side
    172,032.28x = 19,961,259,818.37
  5. Step 5: Solve for x
    x = 19,961,259,818.37/172,032.28
  6. Step 6: Final answer
    x = 116,032.06

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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.