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Finding the Fourth Proportional to 164,813.40, 247,220.10 and 54,005.40

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Solution

The fourth proportional to 164,813.40, 247,220.10 and 54,005.40 is: 81,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,813.40 : 247,220.10 = 54,005.40 : x
  2. Step 2: Convert to fraction form
    164,813.40/247,220.10 = 54,005.40/x
  3. Step 3: Cross multiply
    164,813.40x = 247,220.10 × 54,005.40
  4. Step 4: Simplify right side
    164,813.40x = 13,351,220,388.54
  5. Step 5: Solve for x
    x = 13,351,220,388.54/164,813.40
  6. Step 6: Final answer
    x = 81,008.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.