Home / 120,235.23-180,383.58-70,357.23

Finding the Fourth Proportional to 120,235.23, 180,383.58 and 70,357.23

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Solution

The fourth proportional to 120,235.23, 180,383.58 and 70,357.23 is: 105,553.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,235.23 : 180,383.58 = 70,357.23 : x
  2. Step 2: Convert to fraction form
    120,235.23/180,383.58 = 70,357.23/x
  3. Step 3: Cross multiply
    120,235.23x = 180,383.58 × 70,357.23
  4. Step 4: Simplify right side
    120,235.23x = 12,691,289,026.28
  5. Step 5: Solve for x
    x = 12,691,289,026.28/120,235.23
  6. Step 6: Final answer
    x = 105,553.83

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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.