Home / 125,537.09-173,191.10-80,203.32

Finding the Fourth Proportional to 125,537.09, 173,191.10 and 80,203.32

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Solution

The fourth proportional to 125,537.09, 173,191.10 and 80,203.32 is: 110,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,537.09 : 173,191.10 = 80,203.32 : x
  2. Step 2: Convert to fraction form
    125,537.09/173,191.10 = 80,203.32/x
  3. Step 3: Cross multiply
    125,537.09x = 173,191.10 × 80,203.32
  4. Step 4: Simplify right side
    125,537.09x = 13,890,500,813.44
  5. Step 5: Solve for x
    x = 13,890,500,813.44/125,537.09
  6. Step 6: Final answer
    x = 110,648.58

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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.