Home / 172,403.51-258,438.94-88,203.30

Finding the Fourth Proportional to 172,403.51, 258,438.94 and 88,203.30

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Solution

The fourth proportional to 172,403.51, 258,438.94 and 88,203.30 is: 132,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,403.51 : 258,438.94 = 88,203.30 : x
  2. Step 2: Convert to fraction form
    172,403.51/258,438.94 = 88,203.30/x
  3. Step 3: Cross multiply
    172,403.51x = 258,438.94 × 88,203.30
  4. Step 4: Simplify right side
    172,403.51x = 22,795,166,166.85
  5. Step 5: Solve for x
    x = 22,795,166,166.85/172,403.51
  6. Step 6: Final answer
    x = 132,219.85

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1.5x scale

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.