Home / 260,913.60-391,535.10-111,153.96

Finding the Fourth Proportional to 260,913.60, 391,535.10 and 111,153.96

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Solution

The fourth proportional to 260,913.60, 391,535.10 and 111,153.96 is: 166,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,913.60 : 391,535.10 = 111,153.96 : x
  2. Step 2: Convert to fraction form
    260,913.60/391,535.10 = 111,153.96/x
  3. Step 3: Cross multiply
    260,913.60x = 391,535.10 × 111,153.96
  4. Step 4: Simplify right side
    260,913.60x = 43,520,676,844.00
  5. Step 5: Solve for x
    x = 43,520,676,844.00/260,913.60
  6. Step 6: Final answer
    x = 166,801.11

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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.