Home / 106,991.10-147,801.50-85,452.56

Finding the Fourth Proportional to 106,991.10, 147,801.50 and 85,452.56

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Solution

The fourth proportional to 106,991.10, 147,801.50 and 85,452.56 is: 118,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,991.10 : 147,801.50 = 85,452.56 : x
  2. Step 2: Convert to fraction form
    106,991.10/147,801.50 = 85,452.56/x
  3. Step 3: Cross multiply
    106,991.10x = 147,801.50 × 85,452.56
  4. Step 4: Simplify right side
    106,991.10x = 12,630,016,546.84
  5. Step 5: Solve for x
    x = 12,630,016,546.84/106,991.10
  6. Step 6: Final answer
    x = 118,047.36

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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.