Home / 117,438.06-176,156.62-42,540.68

Finding the Fourth Proportional to 117,438.06, 176,156.62 and 42,540.68

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Solution

The fourth proportional to 117,438.06, 176,156.62 and 42,540.68 is: 63,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,438.06 : 176,156.62 = 42,540.68 : x
  2. Step 2: Convert to fraction form
    117,438.06/176,156.62 = 42,540.68/x
  3. Step 3: Cross multiply
    117,438.06x = 176,156.62 × 42,540.68
  4. Step 4: Simplify right side
    117,438.06x = 7,493,822,401.30
  5. Step 5: Solve for x
    x = 7,493,822,401.30/117,438.06
  6. Step 6: Final answer
    x = 63,810.85

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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.