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Finding the Fourth Proportional to 172,893.60, 259,236.72 and 67,587.12

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Solution

The fourth proportional to 172,893.60, 259,236.72 and 67,587.12 is: 101,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,893.60 : 259,236.72 = 67,587.12 : x
  2. Step 2: Convert to fraction form
    172,893.60/259,236.72 = 67,587.12/x
  3. Step 3: Cross multiply
    172,893.60x = 259,236.72 × 67,587.12
  4. Step 4: Simplify right side
    172,893.60x = 17,521,063,303.05
  5. Step 5: Solve for x
    x = 17,521,063,303.05/172,893.60
  6. Step 6: Final answer
    x = 101,340.15

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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.