Home / 203,041.90-280,103.97-131,445.10

Finding the Fourth Proportional to 203,041.90, 280,103.97 and 131,445.10

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Solution

The fourth proportional to 203,041.90, 280,103.97 and 131,445.10 is: 181,333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,041.90 : 280,103.97 = 131,445.10 : x
  2. Step 2: Convert to fraction form
    203,041.90/280,103.97 = 131,445.10/x
  3. Step 3: Cross multiply
    203,041.90x = 280,103.97 × 131,445.10
  4. Step 4: Simplify right side
    203,041.90x = 36,818,294,347.05
  5. Step 5: Solve for x
    x = 36,818,294,347.05/203,041.90
  6. Step 6: Final answer
    x = 181,333.48

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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.