Home / 172,780.36-259,063.62-67,475.50

Finding the Fourth Proportional to 172,780.36, 259,063.62 and 67,475.50

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Solution

The fourth proportional to 172,780.36, 259,063.62 and 67,475.50 is: 101,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,780.36 : 259,063.62 = 67,475.50 : x
  2. Step 2: Convert to fraction form
    172,780.36/259,063.62 = 67,475.50/x
  3. Step 3: Cross multiply
    172,780.36x = 259,063.62 × 67,475.50
  4. Step 4: Simplify right side
    172,780.36x = 17,480,447,291.31
  5. Step 5: Solve for x
    x = 17,480,447,291.31/172,780.36
  6. Step 6: Final answer
    x = 101,171.49

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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.