Home / 128,927.00-193,390.22-72,741.60

Finding the Fourth Proportional to 128,927.00, 193,390.22 and 72,741.60

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Solution

The fourth proportional to 128,927.00, 193,390.22 and 72,741.60 is: 109,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,927.00 : 193,390.22 = 72,741.60 : x
  2. Step 2: Convert to fraction form
    128,927.00/193,390.22 = 72,741.60/x
  3. Step 3: Cross multiply
    128,927.00x = 193,390.22 × 72,741.60
  4. Step 4: Simplify right side
    128,927.00x = 14,067,514,209.01
  5. Step 5: Solve for x
    x = 14,067,514,209.01/128,927.00
  6. Step 6: Final answer
    x = 109,112.24

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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.