Home / 120,373.61-180,556.09-45,490.73

Finding the Fourth Proportional to 120,373.61, 180,556.09 and 45,490.73

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Solution

The fourth proportional to 120,373.61, 180,556.09 and 45,490.73 is: 68,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,373.61 : 180,556.09 = 45,490.73 : x
  2. Step 2: Convert to fraction form
    120,373.61/180,556.09 = 45,490.73/x
  3. Step 3: Cross multiply
    120,373.61x = 180,556.09 × 45,490.73
  4. Step 4: Simplify right side
    120,373.61x = 8,213,627,209.81
  5. Step 5: Solve for x
    x = 8,213,627,209.81/120,373.61
  6. Step 6: Final answer
    x = 68,234.45

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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.