Home / 120,021.06-180,026.84-31,275.30

Finding the Fourth Proportional to 120,021.06, 180,026.84 and 31,275.30

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Solution

The fourth proportional to 120,021.06, 180,026.84 and 31,275.30 is: 46,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,021.06 : 180,026.84 = 31,275.30 : x
  2. Step 2: Convert to fraction form
    120,021.06/180,026.84 = 31,275.30/x
  3. Step 3: Cross multiply
    120,021.06x = 180,026.84 × 31,275.30
  4. Step 4: Simplify right side
    120,021.06x = 5,630,393,429.05
  5. Step 5: Solve for x
    x = 5,630,393,429.05/120,021.06
  6. Step 6: Final answer
    x = 46,911.71

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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.