Home / 128,852.25-193,306.15-38,887.44

Finding the Fourth Proportional to 128,852.25, 193,306.15 and 38,887.44

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Solution

The fourth proportional to 128,852.25, 193,306.15 and 38,887.44 is: 58,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,852.25 : 193,306.15 = 38,887.44 : x
  2. Step 2: Convert to fraction form
    128,852.25/193,306.15 = 38,887.44/x
  3. Step 3: Cross multiply
    128,852.25x = 193,306.15 × 38,887.44
  4. Step 4: Simplify right side
    128,852.25x = 7,517,181,720.81
  5. Step 5: Solve for x
    x = 7,517,181,720.81/128,852.25
  6. Step 6: Final answer
    x = 58,339.55

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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.