Home / 108,569.76-162,828.45-45,355.74

Finding the Fourth Proportional to 108,569.76, 162,828.45 and 45,355.74

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Solution

The fourth proportional to 108,569.76, 162,828.45 and 45,355.74 is: 68,022.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,569.76 : 162,828.45 = 45,355.74 : x
  2. Step 2: Convert to fraction form
    108,569.76/162,828.45 = 45,355.74/x
  3. Step 3: Cross multiply
    108,569.76x = 162,828.45 × 45,355.74
  4. Step 4: Simplify right side
    108,569.76x = 7,385,204,842.80
  5. Step 5: Solve for x
    x = 7,385,204,842.80/108,569.76
  6. Step 6: Final answer
    x = 68,022.67

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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.