Home / 114,583.57-158,154.40-78,299.71

Finding the Fourth Proportional to 114,583.57, 158,154.40 and 78,299.71

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Solution

The fourth proportional to 114,583.57, 158,154.40 and 78,299.71 is: 108,073.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,583.57 : 158,154.40 = 78,299.71 : x
  2. Step 2: Convert to fraction form
    114,583.57/158,154.40 = 78,299.71/x
  3. Step 3: Cross multiply
    114,583.57x = 158,154.40 × 78,299.71
  4. Step 4: Simplify right side
    114,583.57x = 12,383,443,026.29
  5. Step 5: Solve for x
    x = 12,383,443,026.29/114,583.57
  6. Step 6: Final answer
    x = 108,073.46

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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.