Home / 112,758.22-155,604.58-61,770.52

Finding the Fourth Proportional to 112,758.22, 155,604.58 and 61,770.52

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Solution

The fourth proportional to 112,758.22, 155,604.58 and 61,770.52 is: 85,242.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,758.22 : 155,604.58 = 61,770.52 : x
  2. Step 2: Convert to fraction form
    112,758.22/155,604.58 = 61,770.52/x
  3. Step 3: Cross multiply
    112,758.22x = 155,604.58 × 61,770.52
  4. Step 4: Simplify right side
    112,758.22x = 9,611,775,820.98
  5. Step 5: Solve for x
    x = 9,611,775,820.98/112,758.22
  6. Step 6: Final answer
    x = 85,242.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.