Home / 120,262.08-180,388.88-31,514.88

Finding the Fourth Proportional to 120,262.08, 180,388.88 and 31,514.88

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Solution

The fourth proportional to 120,262.08, 180,388.88 and 31,514.88 is: 47,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,262.08 : 180,388.88 = 31,514.88 : x
  2. Step 2: Convert to fraction form
    120,262.08/180,388.88 = 31,514.88/x
  3. Step 3: Cross multiply
    120,262.08x = 180,388.88 × 31,514.88
  4. Step 4: Simplify right side
    120,262.08x = 5,684,933,906.53
  5. Step 5: Solve for x
    x = 5,684,933,906.53/120,262.08
  6. Step 6: Final answer
    x = 47,271.21

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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.