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Finding the Fourth Proportional to 172,235.67, 258,303.29 and 67,029.63

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Solution

The fourth proportional to 172,235.67, 258,303.29 and 67,029.63 is: 100,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,235.67 : 258,303.29 = 67,029.63 : x
  2. Step 2: Convert to fraction form
    172,235.67/258,303.29 = 67,029.63/x
  3. Step 3: Cross multiply
    172,235.67x = 258,303.29 × 67,029.63
  4. Step 4: Simplify right side
    172,235.67x = 17,313,973,621.33
  5. Step 5: Solve for x
    x = 17,313,973,621.33/172,235.67
  6. Step 6: Final answer
    x = 100,524.90

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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.