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Finding the Fourth Proportional to 125,231.60, 187,847.40 and 109,679.60

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Solution

The fourth proportional to 125,231.60, 187,847.40 and 109,679.60 is: 164,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,231.60 : 187,847.40 = 109,679.60 : x
  2. Step 2: Convert to fraction form
    125,231.60/187,847.40 = 109,679.60/x
  3. Step 3: Cross multiply
    125,231.60x = 187,847.40 × 109,679.60
  4. Step 4: Simplify right side
    125,231.60x = 20,603,027,693.04
  5. Step 5: Solve for x
    x = 20,603,027,693.04/125,231.60
  6. Step 6: Final answer
    x = 164,519.40

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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.