Home / 112,537.20-168,611.40-53,245.20

Finding the Fourth Proportional to 112,537.20, 168,611.40 and 53,245.20

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Solution

The fourth proportional to 112,537.20, 168,611.40 and 53,245.20 is: 79,775.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,537.20 : 168,611.40 = 53,245.20 : x
  2. Step 2: Convert to fraction form
    112,537.20/168,611.40 = 53,245.20/x
  3. Step 3: Cross multiply
    112,537.20x = 168,611.40 × 53,245.20
  4. Step 4: Simplify right side
    112,537.20x = 8,977,747,715.28
  5. Step 5: Solve for x
    x = 8,977,747,715.28/112,537.20
  6. Step 6: Final answer
    x = 79,775.82

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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.