Home / 112,385.10-168,249.60-100,575.30

Finding the Fourth Proportional to 112,385.10, 168,249.60 and 100,575.30

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Solution

The fourth proportional to 112,385.10, 168,249.60 and 100,575.30 is: 150,569.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,385.10 : 168,249.60 = 100,575.30 : x
  2. Step 2: Convert to fraction form
    112,385.10/168,249.60 = 100,575.30/x
  3. Step 3: Cross multiply
    112,385.10x = 168,249.60 × 100,575.30
  4. Step 4: Simplify right side
    112,385.10x = 16,921,753,994.88
  5. Step 5: Solve for x
    x = 16,921,753,994.88/112,385.10
  6. Step 6: Final answer
    x = 150,569.37

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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.