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Finding the Fourth Proportional to 143,539.60, 214,920.60 and 112,435.60

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Solution

The fourth proportional to 143,539.60, 214,920.60 and 112,435.60 is: 168,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,539.60 : 214,920.60 = 112,435.60 : x
  2. Step 2: Convert to fraction form
    143,539.60/214,920.60 = 112,435.60/x
  3. Step 3: Cross multiply
    143,539.60x = 214,920.60 × 112,435.60
  4. Step 4: Simplify right side
    143,539.60x = 24,164,726,613.36
  5. Step 5: Solve for x
    x = 24,164,726,613.36/143,539.60
  6. Step 6: Final answer
    x = 168,348.85

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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.