Home / 119,757.21-165,072.20-87,440.59

Finding the Fourth Proportional to 119,757.21, 165,072.20 and 87,440.59

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Solution

The fourth proportional to 119,757.21, 165,072.20 and 87,440.59 is: 120,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,757.21 : 165,072.20 = 87,440.59 : x
  2. Step 2: Convert to fraction form
    119,757.21/165,072.20 = 87,440.59/x
  3. Step 3: Cross multiply
    119,757.21x = 165,072.20 × 87,440.59
  4. Step 4: Simplify right side
    119,757.21x = 14,434,010,603.25
  5. Step 5: Solve for x
    x = 14,434,010,603.25/119,757.21
  6. Step 6: Final answer
    x = 120,527.28

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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.