Home / 128,779.38-193,132.08-44,517.51

Finding the Fourth Proportional to 128,779.38, 193,132.08 and 44,517.51

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Solution

The fourth proportional to 128,779.38, 193,132.08 and 44,517.51 is: 66,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,779.38 : 193,132.08 = 44,517.51 : x
  2. Step 2: Convert to fraction form
    128,779.38/193,132.08 = 44,517.51/x
  3. Step 3: Cross multiply
    128,779.38x = 193,132.08 × 44,517.51
  4. Step 4: Simplify right side
    128,779.38x = 8,597,759,302.72
  5. Step 5: Solve for x
    x = 8,597,759,302.72/128,779.38
  6. Step 6: Final answer
    x = 66,763.48

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1.5x scale

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.