Home / 109,610.90-164,416.35-103,487.30

Finding the Fourth Proportional to 109,610.90, 164,416.35 and 103,487.30

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Solution

The fourth proportional to 109,610.90, 164,416.35 and 103,487.30 is: 155,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,610.90 : 164,416.35 = 103,487.30 : x
  2. Step 2: Convert to fraction form
    109,610.90/164,416.35 = 103,487.30/x
  3. Step 3: Cross multiply
    109,610.90x = 164,416.35 × 103,487.30
  4. Step 4: Simplify right side
    109,610.90x = 17,015,004,137.36
  5. Step 5: Solve for x
    x = 17,015,004,137.36/109,610.90
  6. Step 6: Final answer
    x = 155,230.95

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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.