Home / 120,589.48-180,782.15-45,668.32

Finding the Fourth Proportional to 120,589.48, 180,782.15 and 45,668.32

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Solution

The fourth proportional to 120,589.48, 180,782.15 and 45,668.32 is: 68,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,589.48 : 180,782.15 = 45,668.32 : x
  2. Step 2: Convert to fraction form
    120,589.48/180,782.15 = 45,668.32/x
  3. Step 3: Cross multiply
    120,589.48x = 180,782.15 × 45,668.32
  4. Step 4: Simplify right side
    120,589.48x = 8,256,017,076.49
  5. Step 5: Solve for x
    x = 8,256,017,076.49/120,589.48
  6. Step 6: Final answer
    x = 68,463.83

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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.