Home / 145,230.96-200,407.50-81,556.44

Finding the Fourth Proportional to 145,230.96, 200,407.50 and 81,556.44

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Solution

The fourth proportional to 145,230.96, 200,407.50 and 81,556.44 is: 112,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,230.96 : 200,407.50 = 81,556.44 : x
  2. Step 2: Convert to fraction form
    145,230.96/200,407.50 = 81,556.44/x
  3. Step 3: Cross multiply
    145,230.96x = 200,407.50 × 81,556.44
  4. Step 4: Simplify right side
    145,230.96x = 16,344,522,249.30
  5. Step 5: Solve for x
    x = 16,344,522,249.30/145,230.96
  6. Step 6: Final answer
    x = 112,541.58

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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.