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Finding the Fourth Proportional to 164,920.80, 247,366.80 and 54,112.80

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Solution

The fourth proportional to 164,920.80, 247,366.80 and 54,112.80 is: 81,164.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,920.80 : 247,366.80 = 54,112.80 : x
  2. Step 2: Convert to fraction form
    164,920.80/247,366.80 = 54,112.80/x
  3. Step 3: Cross multiply
    164,920.80x = 247,366.80 × 54,112.80
  4. Step 4: Simplify right side
    164,920.80x = 13,385,710,175.04
  5. Step 5: Solve for x
    x = 13,385,710,175.04/164,920.80
  6. Step 6: Final answer
    x = 81,164.48

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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.