Home / 120,435.12-180,587.52-95,634.72

Finding the Fourth Proportional to 120,435.12, 180,587.52 and 95,634.72

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Solution

The fourth proportional to 120,435.12, 180,587.52 and 95,634.72 is: 143,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,435.12 : 180,587.52 = 95,634.72 : x
  2. Step 2: Convert to fraction form
    120,435.12/180,587.52 = 95,634.72/x
  3. Step 3: Cross multiply
    120,435.12x = 180,587.52 × 95,634.72
  4. Step 4: Simplify right side
    120,435.12x = 17,270,436,910.69
  5. Step 5: Solve for x
    x = 17,270,436,910.69/120,435.12
  6. Step 6: Final answer
    x = 143,400.34

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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.