Home / 112,647.12-155,453.07-61,660.11

Finding the Fourth Proportional to 112,647.12, 155,453.07 and 61,660.11

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Solution

The fourth proportional to 112,647.12, 155,453.07 and 61,660.11 is: 85,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,647.12 : 155,453.07 = 61,660.11 : x
  2. Step 2: Convert to fraction form
    112,647.12/155,453.07 = 61,660.11/x
  3. Step 3: Cross multiply
    112,647.12x = 155,453.07 × 61,660.11
  4. Step 4: Simplify right side
    112,647.12x = 9,585,253,396.04
  5. Step 5: Solve for x
    x = 9,585,253,396.04/112,647.12
  6. Step 6: Final answer
    x = 85,090.98

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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.