Home / 209,759.90-289,575.96-142,134.26

Finding the Fourth Proportional to 209,759.90, 289,575.96 and 142,134.26

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Solution

The fourth proportional to 209,759.90, 289,575.96 and 142,134.26 is: 196,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,759.90 : 289,575.96 = 142,134.26 : x
  2. Step 2: Convert to fraction form
    209,759.90/289,575.96 = 142,134.26/x
  3. Step 3: Cross multiply
    209,759.90x = 289,575.96 × 142,134.26
  4. Step 4: Simplify right side
    209,759.90x = 41,158,664,788.39
  5. Step 5: Solve for x
    x = 41,158,664,788.39/209,759.90
  6. Step 6: Final answer
    x = 196,217.98

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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.