Home / 109,485.90-164,115.45-59,460.30

Finding the Fourth Proportional to 109,485.90, 164,115.45 and 59,460.30

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Solution

The fourth proportional to 109,485.90, 164,115.45 and 59,460.30 is: 89,128.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,485.90 : 164,115.45 = 59,460.30 : x
  2. Step 2: Convert to fraction form
    109,485.90/164,115.45 = 59,460.30/x
  3. Step 3: Cross multiply
    109,485.90x = 164,115.45 × 59,460.30
  4. Step 4: Simplify right side
    109,485.90x = 9,758,353,891.64
  5. Step 5: Solve for x
    x = 9,758,353,891.64/109,485.90
  6. Step 6: Final answer
    x = 89,128.86

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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.