Home / 205,811.60-308,890.20-93,664.40

Finding the Fourth Proportional to 205,811.60, 308,890.20 and 93,664.40

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Solution

The fourth proportional to 205,811.60, 308,890.20 and 93,664.40 is: 140,575.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,811.60 : 308,890.20 = 93,664.40 : x
  2. Step 2: Convert to fraction form
    205,811.60/308,890.20 = 93,664.40/x
  3. Step 3: Cross multiply
    205,811.60x = 308,890.20 × 93,664.40
  4. Step 4: Simplify right side
    205,811.60x = 28,932,015,248.88
  5. Step 5: Solve for x
    x = 28,932,015,248.88/205,811.60
  6. Step 6: Final answer
    x = 140,575.24

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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.