Home / 120,278.46-180,457.79-40,324.35

Finding the Fourth Proportional to 120,278.46, 180,457.79 and 40,324.35

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Solution

The fourth proportional to 120,278.46, 180,457.79 and 40,324.35 is: 60,499.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,278.46 : 180,457.79 = 40,324.35 : x
  2. Step 2: Convert to fraction form
    120,278.46/180,457.79 = 40,324.35/x
  3. Step 3: Cross multiply
    120,278.46x = 180,457.79 × 40,324.35
  4. Step 4: Simplify right side
    120,278.46x = 7,276,842,882.56
  5. Step 5: Solve for x
    x = 7,276,842,882.56/120,278.46
  6. Step 6: Final answer
    x = 60,499.97

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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.