Home / 113,451.84-156,401.28-83,183.76

Finding the Fourth Proportional to 113,451.84, 156,401.28 and 83,183.76

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Solution

The fourth proportional to 113,451.84, 156,401.28 and 83,183.76 is: 114,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,451.84 : 156,401.28 = 83,183.76 : x
  2. Step 2: Convert to fraction form
    113,451.84/156,401.28 = 83,183.76/x
  3. Step 3: Cross multiply
    113,451.84x = 156,401.28 × 83,183.76
  4. Step 4: Simplify right side
    113,451.84x = 13,010,046,539.21
  5. Step 5: Solve for x
    x = 13,010,046,539.21/113,451.84
  6. Step 6: Final answer
    x = 114,674.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.