Home / 120,739.17-181,108.76-45,859.14

Finding the Fourth Proportional to 120,739.17, 181,108.76 and 45,859.14

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Solution

The fourth proportional to 120,739.17, 181,108.76 and 45,859.14 is: 68,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,739.17 : 181,108.76 = 45,859.14 : x
  2. Step 2: Convert to fraction form
    120,739.17/181,108.76 = 45,859.14/x
  3. Step 3: Cross multiply
    120,739.17x = 181,108.76 × 45,859.14
  4. Step 4: Simplify right side
    120,739.17x = 8,305,491,074.52
  5. Step 5: Solve for x
    x = 8,305,491,074.52/120,739.17
  6. Step 6: Final answer
    x = 68,788.70

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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.