Home / 198,886.32-298,056.78-105,204.96

Finding the Fourth Proportional to 198,886.32, 298,056.78 and 105,204.96

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Solution

The fourth proportional to 198,886.32, 298,056.78 and 105,204.96 is: 157,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,886.32 : 298,056.78 = 105,204.96 : x
  2. Step 2: Convert to fraction form
    198,886.32/298,056.78 = 105,204.96/x
  3. Step 3: Cross multiply
    198,886.32x = 298,056.78 × 105,204.96
  4. Step 4: Simplify right side
    198,886.32x = 31,357,051,617.63
  5. Step 5: Solve for x
    x = 31,357,051,617.63/198,886.32
  6. Step 6: Final answer
    x = 157,663.19

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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.