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Finding the Fourth Proportional to 125,352.72, 172,994.40 and 82,837.44

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Solution

The fourth proportional to 125,352.72, 172,994.40 and 82,837.44 is: 114,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,352.72 : 172,994.40 = 82,837.44 : x
  2. Step 2: Convert to fraction form
    125,352.72/172,994.40 = 82,837.44/x
  3. Step 3: Cross multiply
    125,352.72x = 172,994.40 × 82,837.44
  4. Step 4: Simplify right side
    125,352.72x = 14,330,413,230.34
  5. Step 5: Solve for x
    x = 14,330,413,230.34/125,352.72
  6. Step 6: Final answer
    x = 114,320.72

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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.