Home / 142,971.40-214,383.87-75,539.64

Finding the Fourth Proportional to 142,971.40, 214,383.87 and 75,539.64

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Solution

The fourth proportional to 142,971.40, 214,383.87 and 75,539.64 is: 113,270.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,971.40 : 214,383.87 = 75,539.64 : x
  2. Step 2: Convert to fraction form
    142,971.40/214,383.87 = 75,539.64/x
  3. Step 3: Cross multiply
    142,971.40x = 214,383.87 × 75,539.64
  4. Step 4: Simplify right side
    142,971.40x = 16,194,480,361.61
  5. Step 5: Solve for x
    x = 16,194,480,361.61/142,971.40
  6. Step 6: Final answer
    x = 113,270.77

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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.