Home / 142,971.15-214,383.50-75,539.39

Finding the Fourth Proportional to 142,971.15, 214,383.50 and 75,539.39

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Solution

The fourth proportional to 142,971.15, 214,383.50 and 75,539.39 is: 113,270.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,971.15 : 214,383.50 = 75,539.39 : x
  2. Step 2: Convert to fraction form
    142,971.15/214,383.50 = 75,539.39/x
  3. Step 3: Cross multiply
    142,971.15x = 214,383.50 × 75,539.39
  4. Step 4: Simplify right side
    142,971.15x = 16,194,397,366.45
  5. Step 5: Solve for x
    x = 16,194,397,366.45/142,971.15
  6. Step 6: Final answer
    x = 113,270.39

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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.