Home / 120,227.95-180,336.80-31,479.49

Finding the Fourth Proportional to 120,227.95, 180,336.80 and 31,479.49

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Solution

The fourth proportional to 120,227.95, 180,336.80 and 31,479.49 is: 47,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,227.95 : 180,336.80 = 31,479.49 : x
  2. Step 2: Convert to fraction form
    120,227.95/180,336.80 = 31,479.49/x
  3. Step 3: Cross multiply
    120,227.95x = 180,336.80 × 31,479.49
  4. Step 4: Simplify right side
    120,227.95x = 5,676,910,492.23
  5. Step 5: Solve for x
    x = 5,676,910,492.23/120,227.95
  6. Step 6: Final answer
    x = 47,217.89

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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.