Home / 128,974.16-193,485.96-44,731.04

Finding the Fourth Proportional to 128,974.16, 193,485.96 and 44,731.04

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Solution

The fourth proportional to 128,974.16, 193,485.96 and 44,731.04 is: 67,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,974.16 : 193,485.96 = 44,731.04 : x
  2. Step 2: Convert to fraction form
    128,974.16/193,485.96 = 44,731.04/x
  3. Step 3: Cross multiply
    128,974.16x = 193,485.96 × 44,731.04
  4. Step 4: Simplify right side
    128,974.16x = 8,654,828,216.20
  5. Step 5: Solve for x
    x = 8,654,828,216.20/128,974.16
  6. Step 6: Final answer
    x = 67,105.13

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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.