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Finding the Fourth Proportional to 163,153.70, 225,193.48 and 111,491.71

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Solution

The fourth proportional to 163,153.70, 225,193.48 and 111,491.71 is: 153,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,153.70 : 225,193.48 = 111,491.71 : x
  2. Step 2: Convert to fraction form
    163,153.70/225,193.48 = 111,491.71/x
  3. Step 3: Cross multiply
    163,153.70x = 225,193.48 × 111,491.71
  4. Step 4: Simplify right side
    163,153.70x = 25,107,205,040.08
  5. Step 5: Solve for x
    x = 25,107,205,040.08/163,153.70
  6. Step 6: Final answer
    x = 153,886.83

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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.