Home / 185,877.10-278,815.65-133,777.90

Finding the Fourth Proportional to 185,877.10, 278,815.65 and 133,777.90

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Solution

The fourth proportional to 185,877.10, 278,815.65 and 133,777.90 is: 200,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,877.10 : 278,815.65 = 133,777.90 : x
  2. Step 2: Convert to fraction form
    185,877.10/278,815.65 = 133,777.90/x
  3. Step 3: Cross multiply
    185,877.10x = 278,815.65 × 133,777.90
  4. Step 4: Simplify right side
    185,877.10x = 37,299,372,144.14
  5. Step 5: Solve for x
    x = 37,299,372,144.14/185,877.10
  6. Step 6: Final answer
    x = 200,666.85

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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.