Home / 142,583.77-196,761.18-82,154.53

Finding the Fourth Proportional to 142,583.77, 196,761.18 and 82,154.53

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Solution

The fourth proportional to 142,583.77, 196,761.18 and 82,154.53 is: 113,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,583.77 : 196,761.18 = 82,154.53 : x
  2. Step 2: Convert to fraction form
    142,583.77/196,761.18 = 82,154.53/x
  3. Step 3: Cross multiply
    142,583.77x = 196,761.18 × 82,154.53
  4. Step 4: Simplify right side
    142,583.77x = 16,164,822,265.15
  5. Step 5: Solve for x
    x = 16,164,822,265.15/142,583.77
  6. Step 6: Final answer
    x = 113,370.70

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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.