Home / 120,586.35-180,777.45-45,665.19

Finding the Fourth Proportional to 120,586.35, 180,777.45 and 45,665.19

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Solution

The fourth proportional to 120,586.35, 180,777.45 and 45,665.19 is: 68,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.35 : 180,777.45 = 45,665.19 : x
  2. Step 2: Convert to fraction form
    120,586.35/180,777.45 = 45,665.19/x
  3. Step 3: Cross multiply
    120,586.35x = 180,777.45 × 45,665.19
  4. Step 4: Simplify right side
    120,586.35x = 8,255,236,601.97
  5. Step 5: Solve for x
    x = 8,255,236,601.97/120,586.35
  6. Step 6: Final answer
    x = 68,459.13

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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.