Home / 112,185.88-154,817.34-61,886.68

Finding the Fourth Proportional to 112,185.88, 154,817.34 and 61,886.68

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Solution

The fourth proportional to 112,185.88, 154,817.34 and 61,886.68 is: 85,404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,185.88 : 154,817.34 = 61,886.68 : x
  2. Step 2: Convert to fraction form
    112,185.88/154,817.34 = 61,886.68/x
  3. Step 3: Cross multiply
    112,185.88x = 154,817.34 × 61,886.68
  4. Step 4: Simplify right side
    112,185.88x = 9,581,131,179.03
  5. Step 5: Solve for x
    x = 9,581,131,179.03/112,185.88
  6. Step 6: Final answer
    x = 85,404.07

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1.5x scale

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.