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Finding the Fourth Proportional to 164,821.60, 247,124.40 and 64,921.60

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Solution

The fourth proportional to 164,821.60, 247,124.40 and 64,921.60 is: 97,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,821.60 : 247,124.40 = 64,921.60 : x
  2. Step 2: Convert to fraction form
    164,821.60/247,124.40 = 64,921.60/x
  3. Step 3: Cross multiply
    164,821.60x = 247,124.40 × 64,921.60
  4. Step 4: Simplify right side
    164,821.60x = 16,043,711,447.04
  5. Step 5: Solve for x
    x = 16,043,711,447.04/164,821.60
  6. Step 6: Final answer
    x = 97,339.86

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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.