Home / 142,817.61-214,354.92-76,314.60

Finding the Fourth Proportional to 142,817.61, 214,354.92 and 76,314.60

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Solution

The fourth proportional to 142,817.61, 214,354.92 and 76,314.60 is: 114,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,817.61 : 214,354.92 = 76,314.60 : x
  2. Step 2: Convert to fraction form
    142,817.61/214,354.92 = 76,314.60/x
  3. Step 3: Cross multiply
    142,817.61x = 214,354.92 × 76,314.60
  4. Step 4: Simplify right side
    142,817.61x = 16,358,409,977.83
  5. Step 5: Solve for x
    x = 16,358,409,977.83/142,817.61
  6. Step 6: Final answer
    x = 114,540.57

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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.