Home / 113,812.29-170,663.88-53,790.81

Finding the Fourth Proportional to 113,812.29, 170,663.88 and 53,790.81

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Solution

The fourth proportional to 113,812.29, 170,663.88 and 53,790.81 is: 80,660.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,812.29 : 170,663.88 = 53,790.81 : x
  2. Step 2: Convert to fraction form
    113,812.29/170,663.88 = 53,790.81/x
  3. Step 3: Cross multiply
    113,812.29x = 170,663.88 × 53,790.81
  4. Step 4: Simplify right side
    113,812.29x = 9,180,148,342.94
  5. Step 5: Solve for x
    x = 9,180,148,342.94/113,812.29
  6. Step 6: Final answer
    x = 80,660.43

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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.